21490131

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{19001}}^1$

素因数の和:19046

約数の個数: 16

約数和(自身を含む): 31923360

約数和(自身を除く): 10433229

約数列:

[1, 3, 13, 29, 39, 87, 377, 1131, 19001, 57003, 247013, 551029, 741039, 1653087, 7163377, 21490131]

約数ペア:

[(1, 21490131), (3, 7163377), (13, 1653087), (29, 741039), (39, 551029), (87, 247013), (377, 57003), (1131, 19001)]