9991323

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{2357}}^1$

素因数の和:2523

約数の個数: 16

約数和(自身を含む): 14902560

約数和(自身を除く): 4911237

約数列:

[1, 3, 9, 27, 157, 471, 1413, 2357, 4239, 7071, 21213, 63639, 370049, 1110147, 3330441, 9991323]

約数ペア:

[(1, 9991323), (3, 3330441), (9, 1110147), (27, 370049), (157, 63639), (471, 21213), (1413, 7071), (2357, 4239)]