21639508

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{3257}}^1$

素因数の和:3423

約数の個数: 24

約数和(自身を含む): 41598144

約数和(自身を除く): 19958636

約数列:

[1, 2, 4, 11, 22, 44, 151, 302, 604, 1661, 3257, 3322, 6514, 6644, 13028, 35827, 71654, 143308, 491807, 983614, 1967228, 5409877, 10819754, 21639508]

約数ペア:

[(1, 21639508), (2, 10819754), (4, 5409877), (11, 1967228), (22, 983614), (44, 491807), (151, 143308), (302, 71654), (604, 35827), (1661, 13028), (3257, 6644), (3322, 6514)]