21630830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{733}}^1$

素因数の和:980

約数の個数: 32

約数和(自身を含む): 42172704

約数和(自身を除く): 20541874

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 227, 454, 733, 1135, 1466, 2270, 2951, 3665, 5902, 7330, 9529, 14755, 19058, 29510, 47645, 95290, 166391, 332782, 831955, 1663910, 2163083, 4326166, 10815415, 21630830]

約数ペア:

[(1, 21630830), (2, 10815415), (5, 4326166), (10, 2163083), (13, 1663910), (26, 831955), (65, 332782), (130, 166391), (227, 95290), (454, 47645), (733, 29510), (1135, 19058), (1466, 14755), (2270, 9529), (2951, 7330), (3665, 5902)]