21065308

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{11677}}^1$

素因数の和:11733

約数の個数: 24

約数和(自身を含む): 41199984

約数和(自身を除く): 20134676

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804, 11677, 23354, 46708, 128447, 256894, 478757, 513788, 957514, 1915028, 5266327, 10532654, 21065308]

約数ペア:

[(1, 21065308), (2, 10532654), (4, 5266327), (11, 1915028), (22, 957514), (41, 513788), (44, 478757), (82, 256894), (164, 128447), (451, 46708), (902, 23354), (1804, 11677)]