217178982

素因数分解:

$2^1\times 3^4\times {\mathrm{43}}^1\times {\mathrm{31177}}^1$

素因数の和:31234

約数の個数: 40

約数和(自身を含む): 497975016

約数和(自身を除く): 280796034

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 81, 86, 129, 162, 258, 387, 774, 1161, 2322, 3483, 6966, 31177, 62354, 93531, 187062, 280593, 561186, 841779, 1340611, 1683558, 2525337, 2681222, 4021833, 5050674, 8043666, 12065499, 24130998, 36196497, 72392994, 108589491, 217178982]

約数ペア:

[(1, 217178982), (2, 108589491), (3, 72392994), (6, 36196497), (9, 24130998), (18, 12065499), (27, 8043666), (43, 5050674), (54, 4021833), (81, 2681222), (86, 2525337), (129, 1683558), (162, 1340611), (258, 841779), (387, 561186), (774, 280593), (1161, 187062), (2322, 93531), (3483, 62354), (6966, 31177)]