221245557

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2351}}^1$

素因数の和:2513

約数の個数: 32

約数和(自身を含む): 337182720

約数和(自身を除く): 115937163

約数列:

[1, 3, 13, 19, 39, 57, 127, 247, 381, 741, 1651, 2351, 2413, 4953, 7053, 7239, 30563, 31369, 44669, 91689, 94107, 134007, 298577, 580697, 895731, 1742091, 3881501, 5672963, 11644503, 17018889, 73748519, 221245557]

約数ペア:

[(1, 221245557), (3, 73748519), (13, 17018889), (19, 11644503), (39, 5672963), (57, 3881501), (127, 1742091), (247, 895731), (381, 580697), (741, 298577), (1651, 134007), (2351, 94107), (2413, 91689), (4953, 44669), (7053, 31369), (7239, 30563)]