21238644

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 39725196

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 102, 107, 119, 139, 204, 214, 238, 278, 321, 357, 417, 428, 476, 556, 642, 714, 749, 834, 973, 1284, 1428, 1498, 1668, 1819, 1946, 2247, 2363, 2919, 2996, 3638, 3892, 4494, 4726, 5457, 5838, 7089, 7276, 8988, 9452, 10914, 11676, 12733, 14178, 14873, 16541, 21828, 25466, 28356, 29746, 33082, 38199, 44619, 49623, 50932, 59492, 66164, 76398, 89238, 99246, 104111, 152796, 178476, 198492, 208222, 252841, 312333, 416444, 505682, 624666, 758523, 1011364, 1249332, 1517046, 1769887, 3034092, 3539774, 5309661, 7079548, 10619322, 21238644]

約数ペア:

[(1, 21238644), (2, 10619322), (3, 7079548), (4, 5309661), (6, 3539774), (7, 3034092), (12, 1769887), (14, 1517046), (17, 1249332), (21, 1011364), (28, 758523), (34, 624666), (42, 505682), (51, 416444), (68, 312333), (84, 252841), (102, 208222), (107, 198492), (119, 178476), (139, 152796), (204, 104111), (214, 99246), (238, 89238), (278, 76398), (321, 66164), (357, 59492), (417, 50932), (428, 49623), (476, 44619), (556, 38199), (642, 33082), (714, 29746), (749, 28356), (834, 25466), (973, 21828), (1284, 16541), (1428, 14873), (1498, 14178), (1668, 12733), (1819, 11676), (1946, 10914), (2247, 9452), (2363, 8988), (2919, 7276), (2996, 7089), (3638, 5838), (3892, 5457), (4494, 4726)]