20218219833

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1\times {\mathrm{1999}}^1$

素因数の和:2758

約数の個数: 64

約数和(自身を含む): 33481728000

約数和(自身を除く): 13263508167

約数列:

[1, 3, 7, 17, 21, 41, 51, 119, 123, 287, 357, 691, 697, 861, 1999, 2073, 2091, 4837, 4879, 5997, 11747, 13993, 14511, 14637, 28331, 33983, 35241, 41979, 81959, 82229, 84993, 101949, 198317, 237881, 245877, 246687, 481627, 573713, 594951, 713643, 1381309, 1393303, 1444881, 1721139, 3371389, 4143927, 4179909, 9669163, 9753121, 10114167, 23482253, 29007489, 29259363, 56633669, 70446759, 164375771, 169901007, 396435683, 493127313, 962772373, 1189307049, 2888317119, 6739406611, 20218219833]

約数ペア:

[(1, 20218219833), (3, 6739406611), (7, 2888317119), (17, 1189307049), (21, 962772373), (41, 493127313), (51, 396435683), (119, 169901007), (123, 164375771), (287, 70446759), (357, 56633669), (691, 29259363), (697, 29007489), (861, 23482253), (1999, 10114167), (2073, 9753121), (2091, 9669163), (4837, 4179909), (4879, 4143927), (5997, 3371389), (11747, 1721139), (13993, 1444881), (14511, 1393303), (14637, 1381309), (28331, 713643), (33983, 594951), (35241, 573713), (41979, 481627), (81959, 246687), (82229, 245877), (84993, 237881), (101949, 198317)]