18299398

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:540

約数の個数: 32

約数和(自身を含む): 31352832

約数和(自身を除く): 13053434

約数列:

[1, 2, 13, 23, 26, 46, 71, 142, 299, 431, 598, 862, 923, 1633, 1846, 3266, 5603, 9913, 11206, 19826, 21229, 30601, 42458, 61202, 128869, 257738, 397813, 703823, 795626, 1407646, 9149699, 18299398]

約数ペア:

[(1, 18299398), (2, 9149699), (13, 1407646), (23, 795626), (26, 703823), (46, 397813), (71, 257738), (142, 128869), (299, 61202), (431, 42458), (598, 30601), (862, 21229), (923, 19826), (1633, 11206), (1846, 9913), (3266, 5603)]