20199421781

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{8462263}}^1$

素因数の和:8462312

約数の個数: 16

約数和(自身を含む): 25996075008

約数和(自身を除く): 5796653227

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 8462263, 59235841, 93084893, 262330153, 651594251, 1836311071, 2885631683, 20199421781]

約数ペア:

[(1, 20199421781), (7, 2885631683), (11, 1836311071), (31, 651594251), (77, 262330153), (217, 93084893), (341, 59235841), (2387, 8462263)]