21851368

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1867}}^1$

素因数の和:1910

約数の個数: 64

約数和(自身を含む): 53798400

約数和(自身を除く): 31947032

約数列:

[1, 2, 4, 7, 8, 11, 14, 19, 22, 28, 38, 44, 56, 76, 77, 88, 133, 152, 154, 209, 266, 308, 418, 532, 616, 836, 1064, 1463, 1672, 1867, 2926, 3734, 5852, 7468, 11704, 13069, 14936, 20537, 26138, 35473, 41074, 52276, 70946, 82148, 104552, 141892, 143759, 164296, 248311, 283784, 287518, 390203, 496622, 575036, 780406, 993244, 1150072, 1560812, 1986488, 2731421, 3121624, 5462842, 10925684, 21851368]

約数ペア:

[(1, 21851368), (2, 10925684), (4, 5462842), (7, 3121624), (8, 2731421), (11, 1986488), (14, 1560812), (19, 1150072), (22, 993244), (28, 780406), (38, 575036), (44, 496622), (56, 390203), (76, 287518), (77, 283784), (88, 248311), (133, 164296), (152, 143759), (154, 141892), (209, 104552), (266, 82148), (308, 70946), (418, 52276), (532, 41074), (616, 35473), (836, 26138), (1064, 20537), (1463, 14936), (1672, 13069), (1867, 11704), (2926, 7468), (3734, 5852)]