20320747

素因数分解:

${\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:366

約数の個数: 16

約数和(自身を含む): 22096800

約数和(自身を除く): 1776053

約数列:

[1, 19, 61, 89, 197, 1159, 1691, 3743, 5429, 12017, 17533, 103151, 228323, 333127, 1069513, 20320747]

約数ペア:

[(1, 20320747), (19, 1069513), (61, 333127), (89, 228323), (197, 103151), (1159, 17533), (1691, 12017), (3743, 5429)]