18491308

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{419}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 19611092

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 59, 68, 118, 187, 236, 374, 419, 649, 748, 838, 1003, 1298, 1676, 2006, 2596, 4012, 4609, 7123, 9218, 11033, 14246, 18436, 22066, 24721, 28492, 44132, 49442, 78353, 98884, 156706, 271931, 313412, 420257, 543862, 840514, 1087724, 1681028, 4622827, 9245654, 18491308]

約数ペア:

[(1, 18491308), (2, 9245654), (4, 4622827), (11, 1681028), (17, 1087724), (22, 840514), (34, 543862), (44, 420257), (59, 313412), (68, 271931), (118, 156706), (187, 98884), (236, 78353), (374, 49442), (419, 44132), (649, 28492), (748, 24721), (838, 22066), (1003, 18436), (1298, 14246), (1676, 11033), (2006, 9218), (2596, 7123), (4012, 4609)]