20247867

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1423}}^1$

素因数の和:1480

約数の個数: 32

約数和(自身を含む): 32808960

約数和(自身を除く): 12561093

約数列:

[1, 3, 9, 17, 27, 31, 51, 93, 153, 279, 459, 527, 837, 1423, 1581, 4269, 4743, 12807, 14229, 24191, 38421, 44113, 72573, 132339, 217719, 397017, 653157, 749921, 1191051, 2249763, 6749289, 20247867]

約数ペア:

[(1, 20247867), (3, 6749289), (9, 2249763), (17, 1191051), (27, 749921), (31, 653157), (51, 397017), (93, 217719), (153, 132339), (279, 72573), (459, 44113), (527, 38421), (837, 24191), (1423, 14229), (1581, 12807), (4269, 4743)]