18695667887

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{307}}^1\times {\mathrm{991}}^1$

素因数の和:1503

約数の個数: 32

約数和(自身を含む): 21045319680

約数和(自身を除く): 2349651793

約数列:

[1, 13, 29, 163, 307, 377, 991, 2119, 3991, 4727, 8903, 12883, 28739, 50041, 61451, 115739, 161533, 304237, 373607, 650533, 1451189, 2099929, 3955081, 4684457, 8822873, 18865457, 49590631, 60897941, 114697349, 644678203, 1438128299, 18695667887]

約数ペア:

[(1, 18695667887), (13, 1438128299), (29, 644678203), (163, 114697349), (307, 60897941), (377, 49590631), (991, 18865457), (2119, 8822873), (3991, 4684457), (4727, 3955081), (8903, 2099929), (12883, 1451189), (28739, 650533), (50041, 373607), (61451, 304237), (115739, 161533)]