18161739

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{11801}}^1$

素因数の和:11832

約数の個数: 20

約数和(自身を含む): 28560840

約数和(自身を除く): 10399101

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 11801, 35403, 106209, 224219, 318627, 672657, 955881, 2017971, 6053913, 18161739]

約数ペア:

[(1, 18161739), (3, 6053913), (9, 2017971), (19, 955881), (27, 672657), (57, 318627), (81, 224219), (171, 106209), (513, 35403), (1539, 11801)]