18974172

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 108

約数和(自身を含む): 54720456

約数和(自身を除く): 35746284

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 49, 61, 69, 84, 92, 98, 122, 138, 147, 161, 183, 196, 244, 276, 294, 322, 366, 427, 483, 529, 588, 644, 732, 854, 966, 1058, 1127, 1281, 1403, 1587, 1708, 1932, 2116, 2254, 2562, 2806, 2989, 3174, 3381, 3703, 4209, 4508, 5124, 5612, 5978, 6348, 6762, 7406, 8418, 8967, 9821, 11109, 11956, 13524, 14812, 16836, 17934, 19642, 22218, 25921, 29463, 32269, 35868, 39284, 44436, 51842, 58926, 64538, 68747, 77763, 96807, 103684, 117852, 129076, 137494, 155526, 193614, 206241, 225883, 274988, 311052, 387228, 412482, 451766, 677649, 824964, 903532, 1355298, 1581181, 2710596, 3162362, 4743543, 6324724, 9487086, 18974172]

約数ペア:

[(1, 18974172), (2, 9487086), (3, 6324724), (4, 4743543), (6, 3162362), (7, 2710596), (12, 1581181), (14, 1355298), (21, 903532), (23, 824964), (28, 677649), (42, 451766), (46, 412482), (49, 387228), (61, 311052), (69, 274988), (84, 225883), (92, 206241), (98, 193614), (122, 155526), (138, 137494), (147, 129076), (161, 117852), (183, 103684), (196, 96807), (244, 77763), (276, 68747), (294, 64538), (322, 58926), (366, 51842), (427, 44436), (483, 39284), (529, 35868), (588, 32269), (644, 29463), (732, 25921), (854, 22218), (966, 19642), (1058, 17934), (1127, 16836), (1281, 14812), (1403, 13524), (1587, 11956), (1708, 11109), (1932, 9821), (2116, 8967), (2254, 8418), (2562, 7406), (2806, 6762), (2989, 6348), (3174, 5978), (3381, 5612), (3703, 5124), (4209, 4508)]