216228621

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{14281}}^1$

素因数の和:14401

約数の個数: 24

約数和(自身を含む): 338654784

約数和(自身を除く): 122426163

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 721, 2163, 5047, 14281, 15141, 42843, 99967, 299901, 699769, 1470943, 2099307, 4412829, 10296601, 30889803, 72076207, 216228621]

約数ペア:

[(1, 216228621), (3, 72076207), (7, 30889803), (21, 10296601), (49, 4412829), (103, 2099307), (147, 1470943), (309, 699769), (721, 299901), (2163, 99967), (5047, 42843), (14281, 15141)]