18999708

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 55394304

約数和(自身を除く): 36394596

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 127, 137, 156, 182, 254, 273, 274, 364, 381, 411, 508, 546, 548, 762, 822, 889, 959, 1092, 1524, 1644, 1651, 1778, 1781, 1918, 2667, 2877, 3302, 3556, 3562, 3836, 4953, 5334, 5343, 5754, 6604, 7124, 9906, 10668, 10686, 11508, 11557, 12467, 17399, 19812, 21372, 23114, 24934, 34671, 34798, 37401, 46228, 49868, 52197, 69342, 69596, 74802, 104394, 121793, 138684, 149604, 208788, 226187, 243586, 365379, 452374, 487172, 678561, 730758, 904748, 1357122, 1461516, 1583309, 2714244, 3166618, 4749927, 6333236, 9499854, 18999708]

約数ペア:

[(1, 18999708), (2, 9499854), (3, 6333236), (4, 4749927), (6, 3166618), (7, 2714244), (12, 1583309), (13, 1461516), (14, 1357122), (21, 904748), (26, 730758), (28, 678561), (39, 487172), (42, 452374), (52, 365379), (78, 243586), (84, 226187), (91, 208788), (127, 149604), (137, 138684), (156, 121793), (182, 104394), (254, 74802), (273, 69596), (274, 69342), (364, 52197), (381, 49868), (411, 46228), (508, 37401), (546, 34798), (548, 34671), (762, 24934), (822, 23114), (889, 21372), (959, 19812), (1092, 17399), (1524, 12467), (1644, 11557), (1651, 11508), (1778, 10686), (1781, 10668), (1918, 9906), (2667, 7124), (2877, 6604), (3302, 5754), (3556, 5343), (3562, 5334), (3836, 4953)]