20729868

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{331}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 51537024

約数和(自身を除く): 30807156

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 307, 331, 614, 662, 921, 993, 1228, 1324, 1842, 1986, 3684, 3972, 5219, 5627, 10438, 11254, 15657, 16881, 20876, 22508, 31314, 33762, 62628, 67524, 101617, 203234, 304851, 406468, 609702, 1219404, 1727489, 3454978, 5182467, 6909956, 10364934, 20729868]

約数ペア:

[(1, 20729868), (2, 10364934), (3, 6909956), (4, 5182467), (6, 3454978), (12, 1727489), (17, 1219404), (34, 609702), (51, 406468), (68, 304851), (102, 203234), (204, 101617), (307, 67524), (331, 62628), (614, 33762), (662, 31314), (921, 22508), (993, 20876), (1228, 16881), (1324, 15657), (1842, 11254), (1986, 10438), (3684, 5627), (3972, 5219)]