21343764

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{379}}^1$

素因数の和:437

約数の個数: 72

約数和(自身を含む): 56753760

約数和(自身を除く): 35409996

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 361, 379, 494, 722, 741, 758, 988, 1083, 1137, 1444, 1482, 1516, 2166, 2274, 2964, 4332, 4548, 4693, 4927, 7201, 9386, 9854, 14079, 14402, 14781, 18772, 19708, 21603, 28158, 28804, 29562, 43206, 56316, 59124, 86412, 93613, 136819, 187226, 273638, 280839, 374452, 410457, 547276, 561678, 820914, 1123356, 1641828, 1778647, 3557294, 5335941, 7114588, 10671882, 21343764]

約数ペア:

[(1, 21343764), (2, 10671882), (3, 7114588), (4, 5335941), (6, 3557294), (12, 1778647), (13, 1641828), (19, 1123356), (26, 820914), (38, 561678), (39, 547276), (52, 410457), (57, 374452), (76, 280839), (78, 273638), (114, 187226), (156, 136819), (228, 93613), (247, 86412), (361, 59124), (379, 56316), (494, 43206), (722, 29562), (741, 28804), (758, 28158), (988, 21603), (1083, 19708), (1137, 18772), (1444, 14781), (1482, 14402), (1516, 14079), (2166, 9854), (2274, 9386), (2964, 7201), (4332, 4927), (4548, 4693)]