668899221

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{1693}}^1$

素因数の和:1901

約数の個数: 32

約数和(自身を含む): 967938048

約数和(自身を除く): 299038827

約数列:

[1, 3, 17, 51, 61, 127, 183, 381, 1037, 1693, 2159, 3111, 5079, 6477, 7747, 23241, 28781, 86343, 103273, 131699, 215011, 309819, 395097, 645033, 1755641, 3655187, 5266923, 10965561, 13115671, 39347013, 222966407, 668899221]

約数ペア:

[(1, 668899221), (3, 222966407), (17, 39347013), (51, 13115671), (61, 10965561), (127, 5266923), (183, 3655187), (381, 1755641), (1037, 645033), (1693, 395097), (2159, 309819), (3111, 215011), (5079, 131699), (6477, 103273), (7747, 86343), (23241, 28781)]