20997745937

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{439771}}^1$

素因数の和:440156

約数の個数: 16

約数和(自身を含む): 25330867200

約数和(自身を除く): 4333121263

約数列:

[1, 7, 19, 133, 359, 2513, 6821, 47747, 439771, 3078397, 8355649, 58489543, 157877789, 1105144523, 2999677991, 20997745937]

約数ペア:

[(1, 20997745937), (7, 2999677991), (19, 1105144523), (133, 157877789), (359, 58489543), (2513, 8355649), (6821, 3078397), (47747, 439771)]