21239670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{10567}}^1$

素因数の和:10644

約数の個数: 32

約数和(自身を含む): 51740928

約数和(自身を除く): 30501258

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 67, 134, 201, 335, 402, 670, 1005, 2010, 10567, 21134, 31701, 52835, 63402, 105670, 158505, 317010, 707989, 1415978, 2123967, 3539945, 4247934, 7079890, 10619835, 21239670]

約数ペア:

[(1, 21239670), (2, 10619835), (3, 7079890), (5, 4247934), (6, 3539945), (10, 2123967), (15, 1415978), (30, 707989), (67, 317010), (134, 158505), (201, 105670), (335, 63402), (402, 52835), (670, 31701), (1005, 21134), (2010, 10567)]