20601903

素因数分解:

$3^1\times 7^2\times {\mathrm{269}}^1\times {\mathrm{521}}^1$

素因数の和:807

約数の個数: 24

約数和(自身を含む): 32134320

約数和(自身を除く): 11532417

約数列:

[1, 3, 7, 21, 49, 147, 269, 521, 807, 1563, 1883, 3647, 5649, 10941, 13181, 25529, 39543, 76587, 140149, 420447, 981043, 2943129, 6867301, 20601903]

約数ペア:

[(1, 20601903), (3, 6867301), (7, 2943129), (21, 981043), (49, 420447), (147, 140149), (269, 76587), (521, 39543), (807, 25529), (1563, 13181), (1883, 10941), (3647, 5649)]