18417968

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{523}}^1$

素因数の和:633

約数の個数: 40

約数和(自身を含む): 37426176

約数和(自身を除く): 19008208

約数列:

[1, 2, 4, 8, 16, 31, 62, 71, 124, 142, 248, 284, 496, 523, 568, 1046, 1136, 2092, 2201, 4184, 4402, 8368, 8804, 16213, 17608, 32426, 35216, 37133, 64852, 74266, 129704, 148532, 259408, 297064, 594128, 1151123, 2302246, 4604492, 9208984, 18417968]

約数ペア:

[(1, 18417968), (2, 9208984), (4, 4604492), (8, 2302246), (16, 1151123), (31, 594128), (62, 297064), (71, 259408), (124, 148532), (142, 129704), (248, 74266), (284, 64852), (496, 37133), (523, 35216), (568, 32426), (1046, 17608), (1136, 16213), (2092, 8804), (2201, 8368), (4184, 4402)]