21026450

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{853}}^1$

素因数の和:911

約数の個数: 48

約数和(自身を含む): 42887880

約数和(自身を除く): 21861430

約数列:

[1, 2, 5, 10, 17, 25, 29, 34, 50, 58, 85, 145, 170, 290, 425, 493, 725, 850, 853, 986, 1450, 1706, 2465, 4265, 4930, 8530, 12325, 14501, 21325, 24650, 24737, 29002, 42650, 49474, 72505, 123685, 145010, 247370, 362525, 420529, 618425, 725050, 841058, 1236850, 2102645, 4205290, 10513225, 21026450]

約数ペア:

[(1, 21026450), (2, 10513225), (5, 4205290), (10, 2102645), (17, 1236850), (25, 841058), (29, 725050), (34, 618425), (50, 420529), (58, 362525), (85, 247370), (145, 145010), (170, 123685), (290, 72505), (425, 49474), (493, 42650), (725, 29002), (850, 24737), (853, 24650), (986, 21325), (1450, 14501), (1706, 12325), (2465, 8530), (4265, 4930)]