20195747

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:419

約数の個数: 24

約数和(自身を含む): 24623088

約数和(自身を除く): 4427341

約数列:

[1, 11, 13, 37, 121, 143, 347, 407, 481, 1573, 3817, 4477, 4511, 5291, 12839, 41987, 49621, 58201, 141229, 166907, 545831, 1553519, 1835977, 20195747]

約数ペア:

[(1, 20195747), (11, 1835977), (13, 1553519), (37, 545831), (121, 166907), (143, 141229), (347, 58201), (407, 49621), (481, 41987), (1573, 12839), (3817, 5291), (4477, 4511)]