20959818

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{1399}}^1$

素因数の和:1642

約数の個数: 32

約数和(自身を含む): 45964800

約数和(自身を除く): 25004982

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 227, 454, 681, 1362, 1399, 2497, 2798, 4197, 4994, 7491, 8394, 14982, 15389, 30778, 46167, 92334, 317573, 635146, 952719, 1905438, 3493303, 6986606, 10479909, 20959818]

約数ペア:

[(1, 20959818), (2, 10479909), (3, 6986606), (6, 3493303), (11, 1905438), (22, 952719), (33, 635146), (66, 317573), (227, 92334), (454, 46167), (681, 30778), (1362, 15389), (1399, 14982), (2497, 8394), (2798, 7491), (4197, 4994)]