20781609589

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{331}}^1\times {\mathrm{3559}}^1$

素因数の和:3985

約数の個数: 32

約数和(自身を含む): 23827507200

約数和(自身を除く): 3045897611

約数列:

[1, 13, 23, 59, 299, 331, 767, 1357, 3559, 4303, 7613, 17641, 19529, 46267, 81857, 98969, 209981, 253877, 449167, 1064141, 1178029, 2729753, 4829563, 5839171, 15314377, 27094667, 62784319, 69503711, 352230671, 903548243, 1598585353, 20781609589]

約数ペア:

[(1, 20781609589), (13, 1598585353), (23, 903548243), (59, 352230671), (299, 69503711), (331, 62784319), (767, 27094667), (1357, 15314377), (3559, 5839171), (4303, 4829563), (7613, 2729753), (17641, 1178029), (19529, 1064141), (46267, 449167), (81857, 253877), (98969, 209981)]