21941793

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:518

約数の個数: 32

約数和(自身を含む): 34387200

約数和(自身を除く): 12445407

約数列:

[1, 3, 9, 23, 27, 69, 89, 207, 267, 397, 621, 801, 1191, 2047, 2403, 3573, 6141, 9131, 10719, 18423, 27393, 35333, 55269, 82179, 105999, 246537, 317997, 812659, 953991, 2437977, 7313931, 21941793]

約数ペア:

[(1, 21941793), (3, 7313931), (9, 2437977), (23, 953991), (27, 812659), (69, 317997), (89, 246537), (207, 105999), (267, 82179), (397, 55269), (621, 35333), (801, 27393), (1191, 18423), (2047, 10719), (2403, 9131), (3573, 6141)]