20618241

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{9721}}^1$

素因数の和:9832

約数の個数: 16

約数和(自身を含む): 31732608

約数和(自身を除く): 11114367

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 9721, 29163, 68047, 204141, 981821, 2945463, 6872747, 20618241]

約数ペア:

[(1, 20618241), (3, 6872747), (7, 2945463), (21, 981821), (101, 204141), (303, 68047), (707, 29163), (2121, 9721)]