20155149

素因数分解:

$3^5\times 7^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1$

素因数の和:97

約数の個数: 72

約数和(自身を含む): 37547328

約数和(自身を除く): 17392179

約数列:

[1, 3, 7, 9, 17, 21, 27, 41, 51, 63, 81, 119, 123, 153, 189, 243, 287, 289, 357, 369, 459, 567, 697, 861, 867, 1071, 1107, 1377, 1701, 2023, 2091, 2583, 2601, 3213, 3321, 4131, 4879, 6069, 6273, 7749, 7803, 9639, 9963, 11849, 14637, 18207, 18819, 23247, 23409, 28917, 35547, 43911, 54621, 56457, 69741, 70227, 82943, 106641, 131733, 163863, 169371, 248829, 319923, 395199, 491589, 746487, 959769, 1185597, 2239461, 2879307, 6718383, 20155149]

約数ペア:

[(1, 20155149), (3, 6718383), (7, 2879307), (9, 2239461), (17, 1185597), (21, 959769), (27, 746487), (41, 491589), (51, 395199), (63, 319923), (81, 248829), (119, 169371), (123, 163863), (153, 131733), (189, 106641), (243, 82943), (287, 70227), (289, 69741), (357, 56457), (369, 54621), (459, 43911), (567, 35547), (697, 28917), (861, 23409), (867, 23247), (1071, 18819), (1107, 18207), (1377, 14637), (1701, 11849), (2023, 9963), (2091, 9639), (2583, 7803), (2601, 7749), (3213, 6273), (3321, 6069), (4131, 4879)]