21308718868

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{1094551}}^1$

素因数の和:1094743

約数の個数: 24

約数和(自身を含む): 38738384384

約数和(自身を除く): 17429665516

約数列:

[1, 2, 4, 31, 62, 124, 157, 314, 628, 4867, 9734, 19468, 1094551, 2189102, 4378204, 33931081, 67862162, 135724324, 171844507, 343689014, 687378028, 5327179717, 10654359434, 21308718868]

約数ペア:

[(1, 21308718868), (2, 10654359434), (4, 5327179717), (31, 687378028), (62, 343689014), (124, 171844507), (157, 135724324), (314, 67862162), (628, 33931081), (4867, 4378204), (9734, 2189102), (19468, 1094551)]