20495748

素因数分解:

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

素因数の和:301

約数の個数: 72

約数和(自身を含む): 59292352

約数和(自身を除く): 38796604

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 137, 156, 182, 273, 274, 364, 411, 546, 548, 822, 959, 1092, 1644, 1781, 1918, 2877, 3562, 3836, 5343, 5754, 7124, 10686, 11508, 12467, 18769, 21372, 24934, 37401, 37538, 49868, 56307, 74802, 75076, 112614, 131383, 149604, 225228, 243997, 262766, 394149, 487994, 525532, 731991, 788298, 975988, 1463982, 1576596, 1707979, 2927964, 3415958, 5123937, 6831916, 10247874, 20495748]

約数ペア:

[(1, 20495748), (2, 10247874), (3, 6831916), (4, 5123937), (6, 3415958), (7, 2927964), (12, 1707979), (13, 1576596), (14, 1463982), (21, 975988), (26, 788298), (28, 731991), (39, 525532), (42, 487994), (52, 394149), (78, 262766), (84, 243997), (91, 225228), (137, 149604), (156, 131383), (182, 112614), (273, 75076), (274, 74802), (364, 56307), (411, 49868), (546, 37538), (548, 37401), (822, 24934), (959, 21372), (1092, 18769), (1644, 12467), (1781, 11508), (1918, 10686), (2877, 7124), (3562, 5754), (3836, 5343)]