21168490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43201}}^1$

素因数の和:43222

約数の個数: 24

約数和(自身を含む): 44325252

約数和(自身を除く): 23156762

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 43201, 86402, 216005, 302407, 432010, 604814, 1512035, 2116849, 3024070, 4233698, 10584245, 21168490]

約数ペア:

[(1, 21168490), (2, 10584245), (5, 4233698), (7, 3024070), (10, 2116849), (14, 1512035), (35, 604814), (49, 432010), (70, 302407), (98, 216005), (245, 86402), (490, 43201)]