20485818

素因数分解:

$2^1\times 3^3\times {\mathrm{97}}^1\times {\mathrm{3911}}^1$

素因数の和:4019

約数の個数: 32

約数和(自身を含む): 46005120

約数和(自身を除く): 25519302

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 97, 194, 291, 582, 873, 1746, 2619, 3911, 5238, 7822, 11733, 23466, 35199, 70398, 105597, 211194, 379367, 758734, 1138101, 2276202, 3414303, 6828606, 10242909, 20485818]

約数ペア:

[(1, 20485818), (2, 10242909), (3, 6828606), (6, 3414303), (9, 2276202), (18, 1138101), (27, 758734), (54, 379367), (97, 211194), (194, 105597), (291, 70398), (582, 35199), (873, 23466), (1746, 11733), (2619, 7822), (3911, 5238)]