18988242

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{419}}^1$

素因数の和:527

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 28428078

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 83, 91, 166, 182, 249, 273, 419, 498, 546, 581, 838, 1079, 1162, 1257, 1743, 2158, 2514, 2933, 3237, 3486, 5447, 5866, 6474, 7553, 8799, 10894, 15106, 16341, 17598, 22659, 32682, 34777, 38129, 45318, 69554, 76258, 104331, 114387, 208662, 228774, 243439, 452101, 486878, 730317, 904202, 1356303, 1460634, 2712606, 3164707, 6329414, 9494121, 18988242]

約数ペア:

[(1, 18988242), (2, 9494121), (3, 6329414), (6, 3164707), (7, 2712606), (13, 1460634), (14, 1356303), (21, 904202), (26, 730317), (39, 486878), (42, 452101), (78, 243439), (83, 228774), (91, 208662), (166, 114387), (182, 104331), (249, 76258), (273, 69554), (419, 45318), (498, 38129), (546, 34777), (581, 32682), (838, 22659), (1079, 17598), (1162, 16341), (1257, 15106), (1743, 10894), (2158, 8799), (2514, 7553), (2933, 6474), (3237, 5866), (3486, 5447)]