21118428

素因数分解:

$2^2\times 3^3\times {\mathrm{195541}}^1$

素因数の和:195554

約数の個数: 24

約数和(自身を含む): 54751760

約数和(自身を除く): 33633332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 195541, 391082, 586623, 782164, 1173246, 1759869, 2346492, 3519738, 5279607, 7039476, 10559214, 21118428]

約数ペア:

[(1, 21118428), (2, 10559214), (3, 7039476), (4, 5279607), (6, 3519738), (9, 2346492), (12, 1759869), (18, 1173246), (27, 782164), (36, 586623), (54, 391082), (108, 195541)]