31490451

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{12541}}^1$

素因数の和:12584

約数の個数: 20

約数和(自身を含む): 48562624

約数和(自身を除く): 17072173

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 12541, 37623, 112869, 338607, 388771, 1015821, 1166313, 3498939, 10496817, 31490451]

約数ペア:

[(1, 31490451), (3, 10496817), (9, 3498939), (27, 1166313), (31, 1015821), (81, 388771), (93, 338607), (279, 112869), (837, 37623), (2511, 12541)]