21219642

素因数分解:

$2^1\times 3^2\times {\mathrm{131}}^1\times {\mathrm{8999}}^1$

素因数の和:9138

約数の個数: 24

約数和(自身を含む): 46332000

約数和(自身を除く): 25112358

約数列:

[1, 2, 3, 6, 9, 18, 131, 262, 393, 786, 1179, 2358, 8999, 17998, 26997, 53994, 80991, 161982, 1178869, 2357738, 3536607, 7073214, 10609821, 21219642]

約数ペア:

[(1, 21219642), (2, 10609821), (3, 7073214), (6, 3536607), (9, 2357738), (18, 1178869), (131, 161982), (262, 80991), (393, 53994), (786, 26997), (1179, 17998), (2358, 8999)]