18009884

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2381}}^1$

素因数の和:2477

約数の個数: 24

約数和(自身を含む): 33081216

約数和(自身を除く): 15071332

約数列:

[1, 2, 4, 31, 61, 62, 122, 124, 244, 1891, 2381, 3782, 4762, 7564, 9524, 73811, 145241, 147622, 290482, 295244, 580964, 4502471, 9004942, 18009884]

約数ペア:

[(1, 18009884), (2, 9004942), (4, 4502471), (31, 580964), (61, 295244), (62, 290482), (122, 147622), (124, 145241), (244, 73811), (1891, 9524), (2381, 7564), (3782, 4762)]