21723373

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:588

約数の個数: 16

約数和(自身を含む): 25470720

約数和(自身を除く): 3747347

約数列:

[1, 7, 71, 109, 401, 497, 763, 2807, 7739, 28471, 43709, 54173, 199297, 305963, 3103339, 21723373]

約数ペア:

[(1, 21723373), (7, 3103339), (71, 305963), (109, 199297), (401, 54173), (497, 43709), (763, 28471), (2807, 7739)]