18965188

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 19137212

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 89, 116, 167, 178, 319, 334, 356, 638, 668, 979, 1276, 1837, 1958, 2581, 3674, 3916, 4843, 5162, 7348, 9686, 10324, 14863, 19372, 28391, 29726, 53273, 56782, 59452, 106546, 113564, 163493, 213092, 326986, 431027, 653972, 862054, 1724108, 4741297, 9482594, 18965188]

約数ペア:

[(1, 18965188), (2, 9482594), (4, 4741297), (11, 1724108), (22, 862054), (29, 653972), (44, 431027), (58, 326986), (89, 213092), (116, 163493), (167, 113564), (178, 106546), (319, 59452), (334, 56782), (356, 53273), (638, 29726), (668, 28391), (979, 19372), (1276, 14863), (1837, 10324), (1958, 9686), (2581, 7348), (3674, 5162), (3916, 4843)]