19918010

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{5807}}^1$

素因数の和:5835

約数の個数: 32

約数和(自身を含む): 41817600

約数和(自身を除く): 21899590

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 5807, 11614, 29035, 40649, 58070, 81298, 203245, 284543, 406490, 569086, 1422715, 1991801, 2845430, 3983602, 9959005, 19918010]

約数ペア:

[(1, 19918010), (2, 9959005), (5, 3983602), (7, 2845430), (10, 1991801), (14, 1422715), (35, 569086), (49, 406490), (70, 284543), (98, 203245), (245, 81298), (343, 58070), (490, 40649), (686, 29035), (1715, 11614), (3430, 5807)]