21134953

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{523}}^1$

素因数の和:804

約数の個数: 16

約数和(自身を含む): 25353216

約数和(自身を除く): 4218263

約数列:

[1, 7, 23, 161, 251, 523, 1757, 3661, 5773, 12029, 40411, 84203, 131273, 918911, 3019279, 21134953]

約数ペア:

[(1, 21134953), (7, 3019279), (23, 918911), (161, 131273), (251, 84203), (523, 40411), (1757, 12029), (3661, 5773)]