21121542

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{90263}}^1$

素因数の和:90284

約数の個数: 24

約数和(自身を含む): 49284144

約数和(自身を除く): 28162602

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 90263, 180526, 270789, 541578, 812367, 1173419, 1624734, 2346838, 3520257, 7040514, 10560771, 21121542]

約数ペア:

[(1, 21121542), (2, 10560771), (3, 7040514), (6, 3520257), (9, 2346838), (13, 1624734), (18, 1173419), (26, 812367), (39, 541578), (78, 270789), (117, 180526), (234, 90263)]