20181273

素因数分解:

$3^1\times 7^1\times {\mathrm{631}}^1\times {\mathrm{1523}}^1$

素因数の和:2164

約数の個数: 16

約数和(自身を含む): 30821376

約数和(自身を除く): 10640103

約数列:

[1, 3, 7, 21, 631, 1523, 1893, 4417, 4569, 10661, 13251, 31983, 961013, 2883039, 6727091, 20181273]

約数ペア:

[(1, 20181273), (3, 6727091), (7, 2883039), (21, 961013), (631, 31983), (1523, 13251), (1893, 10661), (4417, 4569)]