21666436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{10477}}^1$

素因数の和:10539

約数の個数: 24

約数和(自身を含む): 42247296

約数和(自身を除く): 20580860

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 188, 517, 1034, 2068, 10477, 20954, 41908, 115247, 230494, 460988, 492419, 984838, 1969676, 5416609, 10833218, 21666436]

約数ペア:

[(1, 21666436), (2, 10833218), (4, 5416609), (11, 1969676), (22, 984838), (44, 492419), (47, 460988), (94, 230494), (188, 115247), (517, 41908), (1034, 20954), (2068, 10477)]