21794920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{77839}}^1$

素因数の和:77857

約数の個数: 32

約数和(自身を含む): 56044800

約数和(自身を除く): 34249880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 77839, 155678, 311356, 389195, 544873, 622712, 778390, 1089746, 1556780, 2179492, 2724365, 3113560, 4358984, 5448730, 10897460, 21794920]

約数ペア:

[(1, 21794920), (2, 10897460), (4, 5448730), (5, 4358984), (7, 3113560), (8, 2724365), (10, 2179492), (14, 1556780), (20, 1089746), (28, 778390), (35, 622712), (40, 544873), (56, 389195), (70, 311356), (140, 155678), (280, 77839)]