21028473

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{823}}^1$

素因数の和:1013

約数の個数: 24

約数和(自身を含む): 32393088

約数和(自身を除く): 11364615

約数列:

[1, 3, 9, 17, 51, 153, 167, 501, 823, 1503, 2469, 2839, 7407, 8517, 13991, 25551, 41973, 125919, 137441, 412323, 1236969, 2336497, 7009491, 21028473]

約数ペア:

[(1, 21028473), (3, 7009491), (9, 2336497), (17, 1236969), (51, 412323), (153, 137441), (167, 125919), (501, 41973), (823, 25551), (1503, 13991), (2469, 8517), (2839, 7407)]