21471690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{6689}}^1$

素因数の和:6806

約数の個数: 32

約数和(自身を含む): 52021440

約数和(自身を除く): 30549750

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 107, 214, 321, 535, 642, 1070, 1605, 3210, 6689, 13378, 20067, 33445, 40134, 66890, 100335, 200670, 715723, 1431446, 2147169, 3578615, 4294338, 7157230, 10735845, 21471690]

約数ペア:

[(1, 21471690), (2, 10735845), (3, 7157230), (5, 4294338), (6, 3578615), (10, 2147169), (15, 1431446), (30, 715723), (107, 200670), (214, 100335), (321, 66890), (535, 40134), (642, 33445), (1070, 20067), (1605, 13378), (3210, 6689)]