18801587

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1\times {\mathrm{317}}^1$

素因数の和:590

約数の個数: 16

約数和(自身を含む): 22234560

約数和(自身を除く): 3432973

約数列:

[1, 7, 37, 229, 259, 317, 1603, 2219, 8473, 11729, 59311, 72593, 82103, 508151, 2685941, 18801587]

約数ペア:

[(1, 18801587), (7, 2685941), (37, 508151), (229, 82103), (259, 72593), (317, 59311), (1603, 11729), (2219, 8473)]