19891683

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 16880157

約数列:

[1, 3, 7, 9, 17, 21, 27, 41, 51, 63, 119, 123, 151, 153, 189, 287, 357, 369, 453, 459, 697, 861, 1057, 1071, 1107, 1359, 2091, 2567, 2583, 3171, 3213, 4077, 4879, 6191, 6273, 7701, 7749, 9513, 14637, 17969, 18573, 18819, 23103, 28539, 43337, 43911, 53907, 55719, 69309, 105247, 130011, 131733, 161721, 167157, 315741, 390033, 485163, 736729, 947223, 1170099, 2210187, 2841669, 6630561, 19891683]

約数ペア:

[(1, 19891683), (3, 6630561), (7, 2841669), (9, 2210187), (17, 1170099), (21, 947223), (27, 736729), (41, 485163), (51, 390033), (63, 315741), (119, 167157), (123, 161721), (151, 131733), (153, 130011), (189, 105247), (287, 69309), (357, 55719), (369, 53907), (453, 43911), (459, 43337), (697, 28539), (861, 23103), (1057, 18819), (1071, 18573), (1107, 17969), (1359, 14637), (2091, 9513), (2567, 7749), (2583, 7701), (3171, 6273), (3213, 6191), (4077, 4879)]