21954186

素因数分解:

$2^1\times 3^3\times {\mathrm{406559}}^1$

素因数の和:406570

約数の個数: 16

約数和(自身を含む): 48787200

約数和(自身を除く): 26833014

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 406559, 813118, 1219677, 2439354, 3659031, 7318062, 10977093, 21954186]

約数ペア:

[(1, 21954186), (2, 10977093), (3, 7318062), (6, 3659031), (9, 2439354), (18, 1219677), (27, 813118), (54, 406559)]