31680555

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 52005888

約数和(自身を除く): 20325333

約数列:

[1, 3, 5, 15, 71, 151, 197, 213, 355, 453, 591, 755, 985, 1065, 2265, 2955, 10721, 13987, 29747, 32163, 41961, 53605, 69935, 89241, 148735, 160815, 209805, 446205, 2112037, 6336111, 10560185, 31680555]

約数ペア:

[(1, 31680555), (3, 10560185), (5, 6336111), (15, 2112037), (71, 446205), (151, 209805), (197, 160815), (213, 148735), (355, 89241), (453, 69935), (591, 53605), (755, 41961), (985, 32163), (1065, 29747), (2265, 13987), (2955, 10721)]