20902755

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1033}}^1$

素因数の和:1131

約数の個数: 32

約数和(自身を含む): 35735040

約数和(自身を除く): 14832285

約数列:

[1, 3, 5, 15, 19, 57, 71, 95, 213, 285, 355, 1033, 1065, 1349, 3099, 4047, 5165, 6745, 15495, 19627, 20235, 58881, 73343, 98135, 220029, 294405, 366715, 1100145, 1393517, 4180551, 6967585, 20902755]

約数ペア:

[(1, 20902755), (3, 6967585), (5, 4180551), (15, 1393517), (19, 1100145), (57, 366715), (71, 294405), (95, 220029), (213, 98135), (285, 73343), (355, 58881), (1033, 20235), (1065, 19627), (1349, 15495), (3099, 6745), (4047, 5165)]