821612

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 1596672

約数和(自身を除く): 775060

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 263, 284, 526, 781, 1052, 1562, 2893, 3124, 5786, 11572, 18673, 37346, 74692, 205403, 410806, 821612]

約数ペア:

[(1, 821612), (2, 410806), (4, 205403), (11, 74692), (22, 37346), (44, 18673), (71, 11572), (142, 5786), (263, 3124), (284, 2893), (526, 1562), (781, 1052)]