81999617

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{2711}}^1$

素因数の和:2896

約数の個数: 16

約数和(自身を含む): 97632000

約数和(自身を除く): 15632383

約数列:

[1, 7, 29, 149, 203, 1043, 2711, 4321, 18977, 30247, 78619, 403939, 550333, 2827573, 11714231, 81999617]

約数ペア:

[(1, 81999617), (7, 11714231), (29, 2827573), (149, 550333), (203, 403939), (1043, 78619), (2711, 30247), (4321, 18977)]