20756505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17971}}^1$

素因数の和:17997

約数の個数: 32

約数和(自身を含む): 41407488

約数和(自身を除く): 20650983

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 17971, 53913, 89855, 125797, 197681, 269565, 377391, 593043, 628985, 988405, 1383767, 1886955, 2965215, 4151301, 6918835, 20756505]

約数ペア:

[(1, 20756505), (3, 6918835), (5, 4151301), (7, 2965215), (11, 1886955), (15, 1383767), (21, 988405), (33, 628985), (35, 593043), (55, 377391), (77, 269565), (105, 197681), (165, 125797), (231, 89855), (385, 53913), (1155, 17971)]