19720778895

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{877}}^1\times {\mathrm{11621}}^1$

素因数の和:12552

約数の個数: 48

約数和(自身を含む): 35020526112

約数和(自身を除く): 15299747217

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 877, 1935, 2631, 4385, 7893, 11621, 13155, 34863, 37711, 39465, 58105, 104589, 113133, 174315, 188555, 339399, 499703, 522945, 565665, 1499109, 1696995, 2498515, 4497327, 7495545, 10191617, 22486635, 30574851, 50958085, 91724553, 152874255, 438239531, 458622765, 1314718593, 2191197655, 3944155779, 6573592965, 19720778895]

約数ペア:

[(1, 19720778895), (3, 6573592965), (5, 3944155779), (9, 2191197655), (15, 1314718593), (43, 458622765), (45, 438239531), (129, 152874255), (215, 91724553), (387, 50958085), (645, 30574851), (877, 22486635), (1935, 10191617), (2631, 7495545), (4385, 4497327), (7893, 2498515), (11621, 1696995), (13155, 1499109), (34863, 565665), (37711, 522945), (39465, 499703), (58105, 339399), (104589, 188555), (113133, 174315)]