21002205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1439}}^1$

素因数の和:1593

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 17704995

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 139, 417, 695, 973, 1439, 2085, 2919, 4317, 4865, 7195, 10073, 14595, 21585, 30219, 50365, 151095, 200021, 600063, 1000105, 1400147, 3000315, 4200441, 7000735, 21002205]

約数ペア:

[(1, 21002205), (3, 7000735), (5, 4200441), (7, 3000315), (15, 1400147), (21, 1000105), (35, 600063), (105, 200021), (139, 151095), (417, 50365), (695, 30219), (973, 21585), (1439, 14595), (2085, 10073), (2919, 7195), (4317, 4865)]