21990438

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{53117}}^1$

素因数の和:53148

約数の個数: 24

約数和(自身を含む): 49718448

約数和(自身を除く): 27728010

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 53117, 106234, 159351, 318702, 478053, 956106, 1221691, 2443382, 3665073, 7330146, 10995219, 21990438]

約数ペア:

[(1, 21990438), (2, 10995219), (3, 7330146), (6, 3665073), (9, 2443382), (18, 1221691), (23, 956106), (46, 478053), (69, 318702), (138, 159351), (207, 106234), (414, 53117)]