21238665

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{3019}}^1$

素因数の和:3101

約数の個数: 32

約数和(自身を含む): 39429120

約数和(自身を除く): 18190455

約数列:

[1, 3, 5, 7, 15, 21, 35, 67, 105, 201, 335, 469, 1005, 1407, 2345, 3019, 7035, 9057, 15095, 21133, 45285, 63399, 105665, 202273, 316995, 606819, 1011365, 1415911, 3034095, 4247733, 7079555, 21238665]

約数ペア:

[(1, 21238665), (3, 7079555), (5, 4247733), (7, 3034095), (15, 1415911), (21, 1011365), (35, 606819), (67, 316995), (105, 202273), (201, 105665), (335, 63399), (469, 45285), (1005, 21133), (1407, 15095), (2345, 9057), (3019, 7035)]