20248263

素因数分解:

$3^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{971}}^1$

素因数の和:1315

約数の個数: 24

約数和(自身を含む): 33561216

約数和(自身を除く): 13312953

約数列:

[1, 3, 7, 9, 21, 63, 331, 971, 993, 2317, 2913, 2979, 6797, 6951, 8739, 20391, 20853, 61173, 321401, 964203, 2249807, 2892609, 6749421, 20248263]

約数ペア:

[(1, 20248263), (3, 6749421), (7, 2892609), (9, 2249807), (21, 964203), (63, 321401), (331, 61173), (971, 20853), (993, 20391), (2317, 8739), (2913, 6951), (2979, 6797)]