20804915901

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{403877}}^1$

素因数の和:404121

約数の個数: 32

約数和(自身を含む): 34739970048

約数和(自身を除く): 13935054147

約数列:

[1, 3, 7, 11, 21, 33, 77, 223, 231, 669, 1561, 2453, 4683, 7359, 17171, 51513, 403877, 1211631, 2827139, 4442647, 8481417, 13327941, 31098529, 90064571, 93295587, 270193713, 630451997, 990710281, 1891355991, 2972130843, 6934971967, 20804915901]

約数ペア:

[(1, 20804915901), (3, 6934971967), (7, 2972130843), (11, 1891355991), (21, 990710281), (33, 630451997), (77, 270193713), (223, 93295587), (231, 90064571), (669, 31098529), (1561, 13327941), (2453, 8481417), (4683, 4442647), (7359, 2827139), (17171, 1211631), (51513, 403877)]