18938408

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1063}}^1$

素因数の和:1217

約数の個数: 32

約数和(自身を含む): 37920960

約数和(自身を除く): 18982552

約数列:

[1, 2, 4, 8, 17, 34, 68, 131, 136, 262, 524, 1048, 1063, 2126, 2227, 4252, 4454, 8504, 8908, 17816, 18071, 36142, 72284, 139253, 144568, 278506, 557012, 1114024, 2367301, 4734602, 9469204, 18938408]

約数ペア:

[(1, 18938408), (2, 9469204), (4, 4734602), (8, 2367301), (17, 1114024), (34, 557012), (68, 278506), (131, 144568), (136, 139253), (262, 72284), (524, 36142), (1048, 18071), (1063, 17816), (2126, 8908), (2227, 8504), (4252, 4454)]