15991954

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{1831}}^1$

素因数の和:2241

約数の個数: 16

約数和(自身を含む): 26248896

約数和(自身を除く): 10256942

約数列:

[1, 2, 11, 22, 397, 794, 1831, 3662, 4367, 8734, 20141, 40282, 726907, 1453814, 7995977, 15991954]

約数ペア:

[(1, 15991954), (2, 7995977), (11, 1453814), (22, 726907), (397, 40282), (794, 20141), (1831, 8734), (3662, 4367)]