20449119

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 29027376

約数和(自身を除く): 8578257

約数列:

[1, 3, 31, 41, 93, 123, 173, 519, 961, 1271, 2883, 3813, 5363, 7093, 16089, 21279, 39401, 118203, 166253, 219883, 498759, 659649, 6816373, 20449119]

約数ペア:

[(1, 20449119), (3, 6816373), (31, 659649), (41, 498759), (93, 219883), (123, 166253), (173, 118203), (519, 39401), (961, 21279), (1271, 16089), (2883, 7093), (3813, 5363)]