21005220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{350087}}^1$

素因数の和:350099

約数の個数: 24

約数和(自身を含む): 58814784

約数和(自身を除く): 37809564

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 350087, 700174, 1050261, 1400348, 1750435, 2100522, 3500870, 4201044, 5251305, 7001740, 10502610, 21005220]

約数ペア:

[(1, 21005220), (2, 10502610), (3, 7001740), (4, 5251305), (5, 4201044), (6, 3500870), (10, 2100522), (12, 1750435), (15, 1400348), (20, 1050261), (30, 700174), (60, 350087)]