16117985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 22686720

約数和(自身を除く): 6568735

約数列:

[1, 5, 13, 19, 31, 65, 95, 155, 247, 403, 421, 589, 1235, 2015, 2105, 2945, 5473, 7657, 7999, 13051, 27365, 38285, 39995, 65255, 103987, 169663, 247969, 519935, 848315, 1239845, 3223597, 16117985]

約数ペア:

[(1, 16117985), (5, 3223597), (13, 1239845), (19, 848315), (31, 519935), (65, 247969), (95, 169663), (155, 103987), (247, 65255), (403, 39995), (421, 38285), (589, 27365), (1235, 13051), (2015, 7999), (2105, 7657), (2945, 5473)]