20016139

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 5385461

約数列:

[1, 11, 13, 19, 53, 139, 143, 209, 247, 583, 689, 1007, 1529, 1807, 2641, 2717, 7367, 7579, 11077, 13091, 19877, 29051, 34333, 81037, 95771, 139973, 144001, 377663, 1053481, 1539703, 1819649, 20016139]

約数ペア:

[(1, 20016139), (11, 1819649), (13, 1539703), (19, 1053481), (53, 377663), (139, 144001), (143, 139973), (209, 95771), (247, 81037), (583, 34333), (689, 29051), (1007, 19877), (1529, 13091), (1807, 11077), (2641, 7579), (2717, 7367)]