21447710

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1597}}^1$

素因数の和:1700

約数の個数: 32

約数和(自身を含む): 41420160

約数和(自身を除く): 19972450

約数列:

[1, 2, 5, 10, 17, 34, 79, 85, 158, 170, 395, 790, 1343, 1597, 2686, 3194, 6715, 7985, 13430, 15970, 27149, 54298, 126163, 135745, 252326, 271490, 630815, 1261630, 2144771, 4289542, 10723855, 21447710]

約数ペア:

[(1, 21447710), (2, 10723855), (5, 4289542), (10, 2144771), (17, 1261630), (34, 630815), (79, 271490), (85, 252326), (158, 135745), (170, 126163), (395, 54298), (790, 27149), (1343, 15970), (1597, 13430), (2686, 7985), (3194, 6715)]