21545290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9749}}^1$

素因数の和:9786

約数の個数: 32

約数和(自身を含む): 44226000

約数和(自身を除く): 22680710

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9749, 19498, 48745, 97490, 126737, 165733, 253474, 331466, 633685, 828665, 1267370, 1657330, 2154529, 4309058, 10772645, 21545290]

約数ペア:

[(1, 21545290), (2, 10772645), (5, 4309058), (10, 2154529), (13, 1657330), (17, 1267370), (26, 828665), (34, 633685), (65, 331466), (85, 253474), (130, 165733), (170, 126737), (221, 97490), (442, 48745), (1105, 19498), (2210, 9749)]