18449800018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{684289}}^1$

素因数の和:684382

約数の個数: 32

約数和(自身を含む): 32074040880

約数和(自身を除く): 13624240862

約数列:

[1, 2, 13, 17, 26, 34, 61, 122, 221, 442, 793, 1037, 1586, 2074, 13481, 26962, 684289, 1368578, 8895757, 11632913, 17791514, 23265826, 41741629, 83483258, 151227869, 302455738, 542641177, 709607693, 1085282354, 1419215386, 9224900009, 18449800018]

約数ペア:

[(1, 18449800018), (2, 9224900009), (13, 1419215386), (17, 1085282354), (26, 709607693), (34, 542641177), (61, 302455738), (122, 151227869), (221, 83483258), (442, 41741629), (793, 23265826), (1037, 17791514), (1586, 11632913), (2074, 8895757), (13481, 1368578), (26962, 684289)]