20801319

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5297}}^1$

素因数の和:5335

約数の個数: 32

約数和(自身を含む): 36619776

約数和(自身を除く): 15818457

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 5297, 15891, 37079, 58267, 90049, 111237, 174801, 270147, 407869, 630343, 990539, 1223607, 1891029, 2971617, 6933773, 20801319]

約数ペア:

[(1, 20801319), (3, 6933773), (7, 2971617), (11, 1891029), (17, 1223607), (21, 990539), (33, 630343), (51, 407869), (77, 270147), (119, 174801), (187, 111237), (231, 90049), (357, 58267), (561, 37079), (1309, 15891), (3927, 5297)]