20313021

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{1567}}^1$

素因数の和:1748

約数の個数: 16

約数和(自身を含む): 28224000

約数和(自身を除く): 7910979

約数列:

[1, 3, 29, 87, 149, 447, 1567, 4321, 4701, 12963, 45443, 136329, 233483, 700449, 6771007, 20313021]

約数ペア:

[(1, 20313021), (3, 6771007), (29, 700449), (87, 233483), (149, 136329), (447, 45443), (1567, 12963), (4321, 4701)]