21169260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:392

約数の個数: 144

約数和(自身を含む): 75007296

約数和(自身を除く): 53838036

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 53, 60, 63, 70, 84, 90, 105, 106, 126, 140, 159, 180, 210, 212, 252, 265, 315, 317, 318, 371, 420, 477, 530, 630, 634, 636, 742, 795, 951, 954, 1060, 1113, 1260, 1268, 1484, 1585, 1590, 1855, 1902, 1908, 2219, 2226, 2385, 2853, 3170, 3180, 3339, 3710, 3804, 4438, 4452, 4755, 4770, 5565, 5706, 6340, 6657, 6678, 7420, 8876, 9510, 9540, 11095, 11130, 11412, 13314, 13356, 14265, 16695, 16801, 19020, 19971, 22190, 22260, 26628, 28530, 33285, 33390, 33602, 39942, 44380, 50403, 57060, 66570, 66780, 67204, 79884, 84005, 99855, 100806, 117607, 133140, 151209, 168010, 199710, 201612, 235214, 252015, 302418, 336020, 352821, 399420, 470428, 504030, 588035, 604836, 705642, 756045, 1008060, 1058463, 1176070, 1411284, 1512090, 1764105, 2116926, 2352140, 3024180, 3528210, 4233852, 5292315, 7056420, 10584630, 21169260]

約数ペア:

[(1, 21169260), (2, 10584630), (3, 7056420), (4, 5292315), (5, 4233852), (6, 3528210), (7, 3024180), (9, 2352140), (10, 2116926), (12, 1764105), (14, 1512090), (15, 1411284), (18, 1176070), (20, 1058463), (21, 1008060), (28, 756045), (30, 705642), (35, 604836), (36, 588035), (42, 504030), (45, 470428), (53, 399420), (60, 352821), (63, 336020), (70, 302418), (84, 252015), (90, 235214), (105, 201612), (106, 199710), (126, 168010), (140, 151209), (159, 133140), (180, 117607), (210, 100806), (212, 99855), (252, 84005), (265, 79884), (315, 67204), (317, 66780), (318, 66570), (371, 57060), (420, 50403), (477, 44380), (530, 39942), (630, 33602), (634, 33390), (636, 33285), (742, 28530), (795, 26628), (951, 22260), (954, 22190), (1060, 19971), (1113, 19020), (1260, 16801), (1268, 16695), (1484, 14265), (1585, 13356), (1590, 13314), (1855, 11412), (1902, 11130), (1908, 11095), (2219, 9540), (2226, 9510), (2385, 8876), (2853, 7420), (3170, 6678), (3180, 6657), (3339, 6340), (3710, 5706), (3804, 5565), (4438, 4770), (4452, 4755)]