17767981

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 23443200

約数和(自身を除く): 5675219

約数列:

[1, 7, 11, 29, 73, 77, 109, 203, 319, 511, 763, 803, 1199, 2117, 2233, 3161, 5621, 7957, 8393, 14819, 22127, 23287, 34771, 55699, 87527, 163009, 230753, 243397, 612689, 1615271, 2538283, 17767981]

約数ペア:

[(1, 17767981), (7, 2538283), (11, 1615271), (29, 612689), (73, 243397), (77, 230753), (109, 163009), (203, 87527), (319, 55699), (511, 34771), (763, 23287), (803, 22127), (1199, 14819), (2117, 8393), (2233, 7957), (3161, 5621)]