21729099

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{2789}}^1$

素因数の和:2859

約数の個数: 24

約数和(自身を含む): 34350480

約数和(自身を除く): 12621381

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 371, 1113, 2597, 2789, 7791, 8367, 19523, 58569, 136661, 147817, 409983, 443451, 1034719, 3104157, 7243033, 21729099]

約数ペア:

[(1, 21729099), (3, 7243033), (7, 3104157), (21, 1034719), (49, 443451), (53, 409983), (147, 147817), (159, 136661), (371, 58569), (1113, 19523), (2597, 8367), (2789, 7791)]