21352016

素因数分解:

$2^4\times 7^1\times {\mathrm{311}}^1\times {\mathrm{613}}^1$

素因数の和:939

約数の個数: 40

約数和(自身を含む): 47508864

約数和(自身を除く): 26156848

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 311, 613, 622, 1226, 1244, 2177, 2452, 2488, 4291, 4354, 4904, 4976, 8582, 8708, 9808, 17164, 17416, 34328, 34832, 68656, 190643, 381286, 762572, 1334501, 1525144, 2669002, 3050288, 5338004, 10676008, 21352016]

約数ペア:

[(1, 21352016), (2, 10676008), (4, 5338004), (7, 3050288), (8, 2669002), (14, 1525144), (16, 1334501), (28, 762572), (56, 381286), (112, 190643), (311, 68656), (613, 34832), (622, 34328), (1226, 17416), (1244, 17164), (2177, 9808), (2452, 8708), (2488, 8582), (4291, 4976), (4354, 4904)]