20518602

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 46932480

約数和(自身を除く): 26413878

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 47, 58, 78, 87, 94, 141, 174, 193, 282, 377, 386, 579, 611, 754, 1131, 1158, 1222, 1363, 1833, 2262, 2509, 2726, 3666, 4089, 5018, 5597, 7527, 8178, 9071, 11194, 15054, 16791, 17719, 18142, 27213, 33582, 35438, 53157, 54426, 72761, 106314, 117923, 145522, 218283, 235846, 263059, 353769, 436566, 526118, 707538, 789177, 1578354, 3419767, 6839534, 10259301, 20518602]

約数ペア:

[(1, 20518602), (2, 10259301), (3, 6839534), (6, 3419767), (13, 1578354), (26, 789177), (29, 707538), (39, 526118), (47, 436566), (58, 353769), (78, 263059), (87, 235846), (94, 218283), (141, 145522), (174, 117923), (193, 106314), (282, 72761), (377, 54426), (386, 53157), (579, 35438), (611, 33582), (754, 27213), (1131, 18142), (1158, 17719), (1222, 16791), (1363, 15054), (1833, 11194), (2262, 9071), (2509, 8178), (2726, 7527), (3666, 5597), (4089, 5018)]