21000984011

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1\times {\mathrm{161881}}^1$

素因数の和:162362

約数の個数: 16

約数和(自身を含む): 24616424448

約数和(自身を除く): 3615440437

約数列:

[1, 7, 43, 301, 431, 3017, 18533, 129731, 161881, 1133167, 6960883, 48726181, 69770711, 488394977, 3000140573, 21000984011]

約数ペア:

[(1, 21000984011), (7, 3000140573), (43, 488394977), (301, 69770711), (431, 48726181), (3017, 6960883), (18533, 1133167), (129731, 161881)]