18155878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{313}}^1$

素因数の和:448

約数の個数: 32

約数和(自身を含む): 31018176

約数和(自身を除く): 12862298

約数列:

[1, 2, 13, 23, 26, 46, 97, 194, 299, 313, 598, 626, 1261, 2231, 2522, 4069, 4462, 7199, 8138, 14398, 29003, 30361, 58006, 60722, 93587, 187174, 394693, 698303, 789386, 1396606, 9077939, 18155878]

約数ペア:

[(1, 18155878), (2, 9077939), (13, 1396606), (23, 789386), (26, 698303), (46, 394693), (97, 187174), (194, 93587), (299, 60722), (313, 58006), (598, 30361), (626, 29003), (1261, 14398), (2231, 8138), (2522, 7199), (4069, 4462)]