20291865

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5347}}^1$

素因数の和:5389

約数の個数: 32

約数和(自身を含む): 36965376

約数和(自身を除く): 16673511

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 759, 1265, 3795, 5347, 16041, 26735, 58817, 80205, 122981, 176451, 294085, 368943, 614905, 882255, 1352791, 1844715, 4058373, 6763955, 20291865]

約数ペア:

[(1, 20291865), (3, 6763955), (5, 4058373), (11, 1844715), (15, 1352791), (23, 882255), (33, 614905), (55, 368943), (69, 294085), (115, 176451), (165, 122981), (253, 80205), (345, 58817), (759, 26735), (1265, 16041), (3795, 5347)]