18060021

素因数分解:

$3^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{653}}^1$

素因数の和:1105

約数の個数: 24

約数和(自身を含む): 29927040

約数和(自身を除く): 11867019

約数列:

[1, 3, 7, 9, 21, 63, 439, 653, 1317, 1959, 3073, 3951, 4571, 5877, 9219, 13713, 27657, 41139, 286667, 860001, 2006669, 2580003, 6020007, 18060021]

約数ペア:

[(1, 18060021), (3, 6020007), (7, 2580003), (9, 2006669), (21, 860001), (63, 286667), (439, 41139), (653, 27657), (1317, 13713), (1959, 9219), (3073, 5877), (3951, 4571)]