18860217

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{809}}^1$

素因数の和:1240

約数の個数: 16

約数和(自身を含む): 26568000

約数和(自身を除く): 7707783

約数列:

[1, 3, 19, 57, 409, 809, 1227, 2427, 7771, 15371, 23313, 46113, 330881, 992643, 6286739, 18860217]

約数ペア:

[(1, 18860217), (3, 6286739), (19, 992643), (57, 330881), (409, 46113), (809, 23313), (1227, 15371), (2427, 7771)]