20850039

素因数分解:

$3^2\times 7^2\times {\mathrm{47279}}^1$

素因数の和:47299

約数の個数: 18

約数和(自身を含む): 35034480

約数和(自身を除く): 14184441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 47279, 141837, 330953, 425511, 992859, 2316671, 2978577, 6950013, 20850039]

約数ペア:

[(1, 20850039), (3, 6950013), (7, 2978577), (9, 2316671), (21, 992859), (49, 425511), (63, 330953), (147, 141837), (441, 47279)]