20880147218

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{168391}}^1$

素因数の和:168938

約数の個数: 32

約数和(自身を含む): 37973069568

約数和(自身を除く): 17092922350

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 521, 1042, 3647, 7294, 8857, 17714, 61999, 123998, 168391, 336782, 1178737, 2357474, 2862647, 5725294, 20038529, 40077058, 87731711, 175463422, 614121977, 1228243954, 1491439087, 2982878174, 10440073609, 20880147218]

約数ペア:

[(1, 20880147218), (2, 10440073609), (7, 2982878174), (14, 1491439087), (17, 1228243954), (34, 614121977), (119, 175463422), (238, 87731711), (521, 40077058), (1042, 20038529), (3647, 5725294), (7294, 2862647), (8857, 2357474), (17714, 1178737), (61999, 336782), (123998, 168391)]