20951056

素因数分解:

$2^4\times 7^1\times {\mathrm{283}}^1\times {\mathrm{661}}^1$

素因数の和:959

約数の個数: 40

約数和(自身を含む): 46625984

約数和(自身を除く): 25674928

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 283, 566, 661, 1132, 1322, 1981, 2264, 2644, 3962, 4528, 4627, 5288, 7924, 9254, 10576, 15848, 18508, 31696, 37016, 74032, 187063, 374126, 748252, 1309441, 1496504, 2618882, 2993008, 5237764, 10475528, 20951056]

約数ペア:

[(1, 20951056), (2, 10475528), (4, 5237764), (7, 2993008), (8, 2618882), (14, 1496504), (16, 1309441), (28, 748252), (56, 374126), (112, 187063), (283, 74032), (566, 37016), (661, 31696), (1132, 18508), (1322, 15848), (1981, 10576), (2264, 9254), (2644, 7924), (3962, 5288), (4528, 4627)]