18978064

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{5843}}^1$

素因数の和:5887

約数の個数: 40

約数和(自身を含む): 43479360

約数和(自身を除く): 24501296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 5843, 11686, 23372, 40901, 46744, 81802, 93488, 163604, 169447, 327208, 338894, 654416, 677788, 1186129, 1355576, 2372258, 2711152, 4744516, 9489032, 18978064]

約数ペア:

[(1, 18978064), (2, 9489032), (4, 4744516), (7, 2711152), (8, 2372258), (14, 1355576), (16, 1186129), (28, 677788), (29, 654416), (56, 338894), (58, 327208), (112, 169447), (116, 163604), (203, 93488), (232, 81802), (406, 46744), (464, 40901), (812, 23372), (1624, 11686), (3248, 5843)]