21717870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1861}}^1$

素因数の和:2260

約数の個数: 32

約数和(自身を含む): 52284960

約数和(自身を除く): 30567090

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 389, 778, 1167, 1861, 1945, 2334, 3722, 3890, 5583, 5835, 9305, 11166, 11670, 18610, 27915, 55830, 723929, 1447858, 2171787, 3619645, 4343574, 7239290, 10858935, 21717870]

約数ペア:

[(1, 21717870), (2, 10858935), (3, 7239290), (5, 4343574), (6, 3619645), (10, 2171787), (15, 1447858), (30, 723929), (389, 55830), (778, 27915), (1167, 18610), (1861, 11670), (1945, 11166), (2334, 9305), (3722, 5835), (3890, 5583)]