21628878

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 48591360

約数和(自身を除く): 26962482

約数列:

[1, 2, 3, 6, 19, 23, 38, 46, 57, 69, 73, 113, 114, 138, 146, 219, 226, 339, 437, 438, 678, 874, 1311, 1387, 1679, 2147, 2599, 2622, 2774, 3358, 4161, 4294, 5037, 5198, 6441, 7797, 8249, 8322, 10074, 12882, 15594, 16498, 24747, 31901, 49381, 49494, 63802, 95703, 98762, 148143, 156731, 189727, 191406, 296286, 313462, 379454, 470193, 569181, 940386, 1138362, 3604813, 7209626, 10814439, 21628878]

約数ペア:

[(1, 21628878), (2, 10814439), (3, 7209626), (6, 3604813), (19, 1138362), (23, 940386), (38, 569181), (46, 470193), (57, 379454), (69, 313462), (73, 296286), (113, 191406), (114, 189727), (138, 156731), (146, 148143), (219, 98762), (226, 95703), (339, 63802), (437, 49494), (438, 49381), (678, 31901), (874, 24747), (1311, 16498), (1387, 15594), (1679, 12882), (2147, 10074), (2599, 8322), (2622, 8249), (2774, 7797), (3358, 6441), (4161, 5198), (4294, 5037)]