20175831

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1223}}^1$

素因数の和:1292

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 12725289

約数列:

[1, 3, 9, 13, 27, 39, 47, 117, 141, 351, 423, 611, 1223, 1269, 1833, 3669, 5499, 11007, 15899, 16497, 33021, 47697, 57481, 143091, 172443, 429273, 517329, 747253, 1551987, 2241759, 6725277, 20175831]

約数ペア:

[(1, 20175831), (3, 6725277), (9, 2241759), (13, 1551987), (27, 747253), (39, 517329), (47, 429273), (117, 172443), (141, 143091), (351, 57481), (423, 47697), (611, 33021), (1223, 16497), (1269, 15899), (1833, 11007), (3669, 5499)]