18688984

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1049}}^1$

素因数の和:1203

約数の個数: 32

約数和(自身を含む): 37422000

約数和(自身を除く): 18733016

約数列:

[1, 2, 4, 8, 17, 34, 68, 131, 136, 262, 524, 1048, 1049, 2098, 2227, 4196, 4454, 8392, 8908, 17816, 17833, 35666, 71332, 137419, 142664, 274838, 549676, 1099352, 2336123, 4672246, 9344492, 18688984]

約数ペア:

[(1, 18688984), (2, 9344492), (4, 4672246), (8, 2336123), (17, 1099352), (34, 549676), (68, 274838), (131, 142664), (136, 137419), (262, 71332), (524, 35666), (1048, 17833), (1049, 17816), (2098, 8908), (2227, 8392), (4196, 4454)]