20871444

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:237

約数の個数: 96

約数和(自身を含む): 57480192

約数和(自身を除く): 36608748

約数列:

[1, 2, 3, 4, 6, 11, 12, 17, 22, 33, 34, 44, 51, 66, 68, 71, 102, 131, 132, 142, 187, 204, 213, 262, 284, 374, 393, 426, 524, 561, 748, 781, 786, 852, 1122, 1207, 1441, 1562, 1572, 2227, 2244, 2343, 2414, 2882, 3124, 3621, 4323, 4454, 4686, 4828, 5764, 6681, 7242, 8646, 8908, 9301, 9372, 13277, 13362, 14484, 17292, 18602, 24497, 26554, 26724, 27903, 37204, 39831, 48994, 53108, 55806, 73491, 79662, 97988, 102311, 111612, 146982, 158117, 159324, 204622, 293964, 306933, 316234, 409244, 474351, 613866, 632468, 948702, 1227732, 1739287, 1897404, 3478574, 5217861, 6957148, 10435722, 20871444]

約数ペア:

[(1, 20871444), (2, 10435722), (3, 6957148), (4, 5217861), (6, 3478574), (11, 1897404), (12, 1739287), (17, 1227732), (22, 948702), (33, 632468), (34, 613866), (44, 474351), (51, 409244), (66, 316234), (68, 306933), (71, 293964), (102, 204622), (131, 159324), (132, 158117), (142, 146982), (187, 111612), (204, 102311), (213, 97988), (262, 79662), (284, 73491), (374, 55806), (393, 53108), (426, 48994), (524, 39831), (561, 37204), (748, 27903), (781, 26724), (786, 26554), (852, 24497), (1122, 18602), (1207, 17292), (1441, 14484), (1562, 13362), (1572, 13277), (2227, 9372), (2244, 9301), (2343, 8908), (2414, 8646), (2882, 7242), (3124, 6681), (3621, 5764), (4323, 4828), (4454, 4686)]