20656536621

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{31730471}}^1$

素因数の和:31730512

約数の個数: 16

約数和(自身を含む): 32492003328

約数和(自身を除く): 11835466707

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 31730471, 95191413, 222113297, 666339891, 983644601, 2950933803, 6885512207, 20656536621]

約数ペア:

[(1, 20656536621), (3, 6885512207), (7, 2950933803), (21, 983644601), (31, 666339891), (93, 222113297), (217, 95191413), (651, 31730471)]