20995731

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3347}}^1$

素因数の和:3411

約数の個数: 24

約数和(自身を含む): 32904144

約数和(自身を除く): 11908413

約数列:

[1, 3, 9, 17, 41, 51, 123, 153, 369, 697, 2091, 3347, 6273, 10041, 30123, 56899, 137227, 170697, 411681, 512091, 1235043, 2332859, 6998577, 20995731]

約数ペア:

[(1, 20995731), (3, 6998577), (9, 2332859), (17, 1235043), (41, 512091), (51, 411681), (123, 170697), (153, 137227), (369, 56899), (697, 30123), (2091, 10041), (3347, 6273)]