21540771

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{9241}}^1$

素因数の和:9291

約数の個数: 24

約数和(自身を含む): 36524384

約数和(自身を除く): 14983613

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 9241, 27723, 64687, 83169, 194061, 341917, 582183, 1025751, 2393419, 3077253, 7180257, 21540771]

約数ペア:

[(1, 21540771), (3, 7180257), (7, 3077253), (9, 2393419), (21, 1025751), (37, 582183), (63, 341917), (111, 194061), (259, 83169), (333, 64687), (777, 27723), (2331, 9241)]