81911951

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{2699}}^1$

素因数の和:2830

約数の個数: 16

約数和(自身を含む): 93312000

約数和(自身を除く): 11400049

約数列:

[1, 11, 31, 89, 341, 979, 2699, 2759, 29689, 30349, 83669, 240211, 920359, 2642321, 7446541, 81911951]

約数ペア:

[(1, 81911951), (11, 7446541), (31, 2642321), (89, 920359), (341, 240211), (979, 83669), (2699, 30349), (2759, 29689)]