21646610

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{571}}^1$

素因数の和:818

約数の個数: 32

約数和(自身を含む): 41513472

約数和(自身を除く): 19866862

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 223, 446, 571, 1115, 1142, 2230, 2855, 3791, 5710, 7582, 9707, 18955, 19414, 37910, 48535, 97070, 127333, 254666, 636665, 1273330, 2164661, 4329322, 10823305, 21646610]

約数ペア:

[(1, 21646610), (2, 10823305), (5, 4329322), (10, 2164661), (17, 1273330), (34, 636665), (85, 254666), (170, 127333), (223, 97070), (446, 48535), (571, 37910), (1115, 19414), (1142, 18955), (2230, 9707), (2855, 7582), (3791, 5710)]