18420481

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 20318400

約数和(自身を除く): 1897919

約数列:

[1, 19, 29, 101, 331, 551, 1919, 2929, 6289, 9599, 33431, 55651, 182381, 635189, 969499, 18420481]

約数ペア:

[(1, 18420481), (19, 969499), (29, 635189), (101, 182381), (331, 55651), (551, 33431), (1919, 9599), (2929, 6289)]