20899473

素因数分解:

$3^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{2267}}^1$

素因数の和:2716

約数の個数: 16

約数和(自身を含む): 31933440

約数和(自身を除く): 11033967

約数列:

[1, 3, 7, 21, 439, 1317, 2267, 3073, 6801, 9219, 15869, 47607, 995213, 2985639, 6966491, 20899473]

約数ペア:

[(1, 20899473), (3, 6966491), (7, 2985639), (21, 995213), (439, 47607), (1317, 15869), (2267, 9219), (3073, 6801)]