21030940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150221}}^1$

素因数の和:150237

約数の個数: 24

約数和(自身を含む): 50474592

約数和(自身を除く): 29443652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150221, 300442, 600884, 751105, 1051547, 1502210, 2103094, 3004420, 4206188, 5257735, 10515470, 21030940]

約数ペア:

[(1, 21030940), (2, 10515470), (4, 5257735), (5, 4206188), (7, 3004420), (10, 2103094), (14, 1502210), (20, 1051547), (28, 751105), (35, 600884), (70, 300442), (140, 150221)]