21010590

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25939}}^1$

素因数の和:25958

約数の個数: 40

約数和(自身を含む): 56497320

約数和(自身を除く): 35486730

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25939, 51878, 77817, 129695, 155634, 233451, 259390, 389085, 466902, 700353, 778170, 1167255, 1400706, 2101059, 2334510, 3501765, 4202118, 7003530, 10505295, 21010590]

約数ペア:

[(1, 21010590), (2, 10505295), (3, 7003530), (5, 4202118), (6, 3501765), (9, 2334510), (10, 2101059), (15, 1400706), (18, 1167255), (27, 778170), (30, 700353), (45, 466902), (54, 389085), (81, 259390), (90, 233451), (135, 155634), (162, 129695), (270, 77817), (405, 51878), (810, 25939)]