20518528

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5171}}^1$

素因数の和:5216

約数の個数: 32

約数和(自身を含む): 42203520

約数和(自身を除く): 21684992

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5171, 10342, 20684, 41368, 82736, 160301, 165472, 320602, 330944, 641204, 661888, 1282408, 2564816, 5129632, 10259264, 20518528]

約数ペア:

[(1, 20518528), (2, 10259264), (4, 5129632), (8, 2564816), (16, 1282408), (31, 661888), (32, 641204), (62, 330944), (64, 320602), (124, 165472), (128, 160301), (248, 82736), (496, 41368), (992, 20684), (1984, 10342), (3968, 5171)]