21015420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{350257}}^1$

素因数の和:350269

約数の個数: 24

約数和(自身を含む): 58843344

約数和(自身を除く): 37827924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 350257, 700514, 1050771, 1401028, 1751285, 2101542, 3502570, 4203084, 5253855, 7005140, 10507710, 21015420]

約数ペア:

[(1, 21015420), (2, 10507710), (3, 7005140), (4, 5253855), (5, 4203084), (6, 3502570), (10, 2101542), (12, 1751285), (15, 1401028), (20, 1050771), (30, 700514), (60, 350257)]