21546231

素因数分解:

$3^1\times 7^3\times {\mathrm{20939}}^1$

素因数の和:20963

約数の個数: 16

約数和(自身を含む): 33504000

約数和(自身を除く): 11957769

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 20939, 62817, 146573, 439719, 1026011, 3078033, 7182077, 21546231]

約数ペア:

[(1, 21546231), (3, 7182077), (7, 3078033), (21, 1026011), (49, 439719), (147, 146573), (343, 62817), (1029, 20939)]