20953713

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1453}}^1$

素因数の和:1509

約数の個数: 32

約数和(自身を含む): 33500160

約数和(自身を除く): 12546447

約数列:

[1, 3, 11, 19, 23, 33, 57, 69, 209, 253, 437, 627, 759, 1311, 1453, 4359, 4807, 14421, 15983, 27607, 33419, 47949, 82821, 100257, 303677, 367609, 634961, 911031, 1102827, 1904883, 6984571, 20953713]

約数ペア:

[(1, 20953713), (3, 6984571), (11, 1904883), (19, 1102827), (23, 911031), (33, 634961), (57, 367609), (69, 303677), (209, 100257), (253, 82821), (437, 47949), (627, 33419), (759, 27607), (1311, 15983), (1453, 14421), (4359, 4807)]