20756007

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{1697}}^1$

素因数の和:1860

約数の個数: 20

約数和(自身を含む): 31229616

約数和(自身を除く): 10473609

約数列:

[1, 3, 9, 27, 81, 151, 453, 1359, 1697, 4077, 5091, 12231, 15273, 45819, 137457, 256247, 768741, 2306223, 6918669, 20756007]

約数ペア:

[(1, 20756007), (3, 6918669), (9, 2306223), (27, 768741), (81, 256247), (151, 137457), (453, 45819), (1359, 15273), (1697, 12231), (4077, 5091)]