81425813

素因数分解:

$7^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1\times {\mathrm{431}}^1$

素因数の和:772

約数の個数: 16

約数和(自身を含む): 94431744

約数和(自身を除く): 13005931

約数列:

[1, 7, 137, 197, 431, 959, 1379, 3017, 26989, 59047, 84907, 188923, 413329, 594349, 11632259, 81425813]

約数ペア:

[(1, 81425813), (7, 11632259), (137, 594349), (197, 413329), (431, 188923), (959, 84907), (1379, 59047), (3017, 26989)]