21779973

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{337}}^1$

素因数の和:553

約数の個数: 24

約数和(自身を含む): 32480448

約数和(自身を除く): 10700475

約数列:

[1, 3, 9, 43, 129, 167, 337, 387, 501, 1011, 1503, 3033, 7181, 14491, 21543, 43473, 56279, 64629, 130419, 168837, 506511, 2419997, 7259991, 21779973]

約数ペア:

[(1, 21779973), (3, 7259991), (9, 2419997), (43, 506511), (129, 168837), (167, 130419), (337, 64629), (387, 56279), (501, 43473), (1011, 21543), (1503, 14491), (3033, 7181)]