18661820

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{19853}}^1$

素因数の和:19909

約数の個数: 24

約数和(自身を含む): 40025664

約数和(自身を除く): 21363844

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 19853, 39706, 79412, 99265, 198530, 397060, 933091, 1866182, 3732364, 4665455, 9330910, 18661820]

約数ペア:

[(1, 18661820), (2, 9330910), (4, 4665455), (5, 3732364), (10, 1866182), (20, 933091), (47, 397060), (94, 198530), (188, 99265), (235, 79412), (470, 39706), (940, 19853)]