217612978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{523}}^1\times {\mathrm{18913}}^1$

素因数の和:19449

約数の個数: 16

約数和(自身を含む): 356793696

約数和(自身を除く): 139180718

約数列:

[1, 2, 11, 22, 523, 1046, 5753, 11506, 18913, 37826, 208043, 416086, 9891499, 19782998, 108806489, 217612978]

約数ペア:

[(1, 217612978), (2, 108806489), (11, 19782998), (22, 9891499), (523, 416086), (1046, 208043), (5753, 37826), (11506, 18913)]