19857315

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 13320285

約数列:

[1, 3, 5, 15, 29, 87, 145, 191, 239, 435, 573, 717, 955, 1195, 2865, 3585, 5539, 6931, 16617, 20793, 27695, 34655, 45649, 83085, 103965, 136947, 228245, 684735, 1323821, 3971463, 6619105, 19857315]

約数ペア:

[(1, 19857315), (3, 6619105), (5, 3971463), (15, 1323821), (29, 684735), (87, 228245), (145, 136947), (191, 103965), (239, 83085), (435, 45649), (573, 34655), (717, 27695), (955, 20793), (1195, 16617), (2865, 6931), (3585, 5539)]