18312398

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{163}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 30996000

約数和(自身を除く): 12683602

約数列:

[1, 2, 13, 26, 29, 58, 149, 163, 298, 326, 377, 754, 1937, 2119, 3874, 4238, 4321, 4727, 8642, 9454, 24287, 48574, 56173, 61451, 112346, 122902, 315731, 631462, 704323, 1408646, 9156199, 18312398]

約数ペア:

[(1, 18312398), (2, 9156199), (13, 1408646), (26, 704323), (29, 631462), (58, 315731), (149, 122902), (163, 112346), (298, 61451), (326, 56173), (377, 48574), (754, 24287), (1937, 9454), (2119, 8642), (3874, 4727), (4238, 4321)]