21462255

素因数分解:

$3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1979}}^1$

素因数の和:2231

約数の個数: 24

約数和(自身を含む): 37374480

約数和(自身を除く): 15912225

約数列:

[1, 3, 5, 9, 15, 45, 241, 723, 1205, 1979, 2169, 3615, 5937, 9895, 10845, 17811, 29685, 89055, 476939, 1430817, 2384695, 4292451, 7154085, 21462255]

約数ペア:

[(1, 21462255), (3, 7154085), (5, 4292451), (9, 2384695), (15, 1430817), (45, 476939), (241, 89055), (723, 29685), (1205, 17811), (1979, 10845), (2169, 9895), (3615, 5937)]