20921994

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{27031}}^1$

素因数の和:27082

約数の個数: 24

約数和(自身を含む): 46386912

約数和(自身を除く): 25464918

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 27031, 54062, 81093, 162186, 243279, 486558, 1162333, 2324666, 3486999, 6973998, 10460997, 20921994]

約数ペア:

[(1, 20921994), (2, 10460997), (3, 6973998), (6, 3486999), (9, 2324666), (18, 1162333), (43, 486558), (86, 243279), (129, 162186), (258, 81093), (387, 54062), (774, 27031)]