21436380

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:185

約数の個数: 192

約数和(自身を含む): 78382080

約数和(自身を除く): 56945700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 53, 54, 60, 63, 70, 84, 90, 105, 106, 107, 108, 126, 135, 140, 159, 180, 189, 210, 212, 214, 252, 265, 270, 315, 318, 321, 371, 378, 420, 428, 477, 530, 535, 540, 630, 636, 642, 742, 749, 756, 795, 945, 954, 963, 1060, 1070, 1113, 1260, 1284, 1431, 1484, 1498, 1590, 1605, 1855, 1890, 1908, 1926, 2140, 2226, 2247, 2385, 2862, 2889, 2996, 3180, 3210, 3339, 3710, 3745, 3780, 3852, 4452, 4494, 4770, 4815, 5565, 5671, 5724, 5778, 6420, 6678, 6741, 7155, 7420, 7490, 8988, 9540, 9630, 10017, 11130, 11235, 11342, 11556, 13356, 13482, 14310, 14445, 14980, 16695, 17013, 19260, 20034, 20223, 22260, 22470, 22684, 26964, 28355, 28620, 28890, 33390, 33705, 34026, 39697, 40068, 40446, 44940, 50085, 51039, 56710, 57780, 66780, 67410, 68052, 79394, 80892, 85065, 100170, 101115, 102078, 113420, 119091, 134820, 153117, 158788, 170130, 198485, 200340, 202230, 204156, 238182, 255195, 306234, 340260, 357273, 396970, 404460, 476364, 510390, 595455, 612468, 714546, 765585, 793940, 1020780, 1071819, 1190910, 1429092, 1531170, 1786365, 2143638, 2381820, 3062340, 3572730, 4287276, 5359095, 7145460, 10718190, 21436380]

約数ペア:

[(1, 21436380), (2, 10718190), (3, 7145460), (4, 5359095), (5, 4287276), (6, 3572730), (7, 3062340), (9, 2381820), (10, 2143638), (12, 1786365), (14, 1531170), (15, 1429092), (18, 1190910), (20, 1071819), (21, 1020780), (27, 793940), (28, 765585), (30, 714546), (35, 612468), (36, 595455), (42, 510390), (45, 476364), (53, 404460), (54, 396970), (60, 357273), (63, 340260), (70, 306234), (84, 255195), (90, 238182), (105, 204156), (106, 202230), (107, 200340), (108, 198485), (126, 170130), (135, 158788), (140, 153117), (159, 134820), (180, 119091), (189, 113420), (210, 102078), (212, 101115), (214, 100170), (252, 85065), (265, 80892), (270, 79394), (315, 68052), (318, 67410), (321, 66780), (371, 57780), (378, 56710), (420, 51039), (428, 50085), (477, 44940), (530, 40446), (535, 40068), (540, 39697), (630, 34026), (636, 33705), (642, 33390), (742, 28890), (749, 28620), (756, 28355), (795, 26964), (945, 22684), (954, 22470), (963, 22260), (1060, 20223), (1070, 20034), (1113, 19260), (1260, 17013), (1284, 16695), (1431, 14980), (1484, 14445), (1498, 14310), (1590, 13482), (1605, 13356), (1855, 11556), (1890, 11342), (1908, 11235), (1926, 11130), (2140, 10017), (2226, 9630), (2247, 9540), (2385, 8988), (2862, 7490), (2889, 7420), (2996, 7155), (3180, 6741), (3210, 6678), (3339, 6420), (3710, 5778), (3745, 5724), (3780, 5671), (3852, 5565), (4452, 4815), (4494, 4770)]