21308438

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{4903}}^1$

素因数の和:4999

約数の個数: 16

約数和(自身を含む): 33366816

約数和(自身を除く): 12058378

約数列:

[1, 2, 41, 53, 82, 106, 2173, 4346, 4903, 9806, 201023, 259859, 402046, 519718, 10654219, 21308438]

約数ペア:

[(1, 21308438), (2, 10654219), (41, 519718), (53, 402046), (82, 259859), (106, 201023), (2173, 9806), (4346, 4903)]