21128976

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13339}}^1$

素因数の和:13364

約数の個数: 60

約数和(自身を含む): 64512240

約数和(自身を除く): 43383264

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 88, 99, 132, 144, 176, 198, 264, 396, 528, 792, 1584, 13339, 26678, 40017, 53356, 80034, 106712, 120051, 146729, 160068, 213424, 240102, 293458, 320136, 440187, 480204, 586916, 640272, 880374, 960408, 1173832, 1320561, 1760748, 1920816, 2347664, 2641122, 3521496, 5282244, 7042992, 10564488, 21128976]

約数ペア:

[(1, 21128976), (2, 10564488), (3, 7042992), (4, 5282244), (6, 3521496), (8, 2641122), (9, 2347664), (11, 1920816), (12, 1760748), (16, 1320561), (18, 1173832), (22, 960408), (24, 880374), (33, 640272), (36, 586916), (44, 480204), (48, 440187), (66, 320136), (72, 293458), (88, 240102), (99, 213424), (132, 160068), (144, 146729), (176, 120051), (198, 106712), (264, 80034), (396, 53356), (528, 40017), (792, 26678), (1584, 13339)]