19861075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2657}}^1$

素因数の和:2703

約数の個数: 24

約数和(自身を含む): 27685728

約数和(自身を除く): 7824653

約数列:

[1, 5, 13, 23, 25, 65, 115, 299, 325, 575, 1495, 2657, 7475, 13285, 34541, 61111, 66425, 172705, 305555, 794443, 863525, 1527775, 3972215, 19861075]

約数ペア:

[(1, 19861075), (5, 3972215), (13, 1527775), (23, 863525), (25, 794443), (65, 305555), (115, 172705), (299, 66425), (325, 61111), (575, 34541), (1495, 13285), (2657, 7475)]