21810110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1801}}^1$

素因数の和:1988

約数の個数: 32

約数和(自身を含む): 45150912

約数和(自身を除く): 23340802

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 173, 346, 865, 1211, 1730, 1801, 2422, 3602, 6055, 9005, 12110, 12607, 18010, 25214, 63035, 126070, 311573, 623146, 1557865, 2181011, 3115730, 4362022, 10905055, 21810110]

約数ペア:

[(1, 21810110), (2, 10905055), (5, 4362022), (7, 3115730), (10, 2181011), (14, 1557865), (35, 623146), (70, 311573), (173, 126070), (346, 63035), (865, 25214), (1211, 18010), (1730, 12607), (1801, 12110), (2422, 9005), (3602, 6055)]