21110158905

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{127051}}^1$

素因数の和:127142

約数の個数: 64

約数和(自身を含む): 39518254080

約数和(自身を除く): 18408095175

約数列:

[1, 3, 5, 11, 15, 19, 33, 53, 55, 57, 95, 159, 165, 209, 265, 285, 583, 627, 795, 1007, 1045, 1749, 2915, 3021, 3135, 5035, 8745, 11077, 15105, 33231, 55385, 127051, 166155, 381153, 635255, 1397561, 1905765, 2413969, 4192683, 6733703, 6987805, 7241907, 12069845, 20201109, 20963415, 26553659, 33668515, 36209535, 74070733, 79660977, 101005545, 127940357, 132768295, 222212199, 370353665, 383821071, 398304885, 639701785, 1111060995, 1407343927, 1919105355, 4222031781, 7036719635, 21110158905]

約数ペア:

[(1, 21110158905), (3, 7036719635), (5, 4222031781), (11, 1919105355), (15, 1407343927), (19, 1111060995), (33, 639701785), (53, 398304885), (55, 383821071), (57, 370353665), (95, 222212199), (159, 132768295), (165, 127940357), (209, 101005545), (265, 79660977), (285, 74070733), (583, 36209535), (627, 33668515), (795, 26553659), (1007, 20963415), (1045, 20201109), (1749, 12069845), (2915, 7241907), (3021, 6987805), (3135, 6733703), (5035, 4192683), (8745, 2413969), (11077, 1905765), (15105, 1397561), (33231, 635255), (55385, 381153), (127051, 166155)]