15971805

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4999}}^1$

素因数の和:5081

約数の個数: 24

約数和(自身を含む): 28080000

約数和(自身を除く): 12108195

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 4999, 14997, 24995, 44991, 74985, 224955, 354929, 1064787, 1774645, 3194361, 5323935, 15971805]

約数ペア:

[(1, 15971805), (3, 5323935), (5, 3194361), (9, 1774645), (15, 1064787), (45, 354929), (71, 224955), (213, 74985), (355, 44991), (639, 24995), (1065, 14997), (3195, 4999)]