18425416

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2221}}^1$

素因数の和:2305

約数の個数: 32

約数和(自身を含む): 37196280

約数和(自身を除く): 18770864

約数列:

[1, 2, 4, 8, 17, 34, 61, 68, 122, 136, 244, 488, 1037, 2074, 2221, 4148, 4442, 8296, 8884, 17768, 37757, 75514, 135481, 151028, 270962, 302056, 541924, 1083848, 2303177, 4606354, 9212708, 18425416]

約数ペア:

[(1, 18425416), (2, 9212708), (4, 4606354), (8, 2303177), (17, 1083848), (34, 541924), (61, 302056), (68, 270962), (122, 151028), (136, 135481), (244, 75514), (488, 37757), (1037, 17768), (2074, 8884), (2221, 8296), (4148, 4442)]