21068112

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1777}}^1$

素因数の和:1820

約数の個数: 80

約数和(自身を含む): 61732160

約数和(自身を除く): 40664048

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 38, 39, 48, 52, 57, 76, 78, 104, 114, 152, 156, 208, 228, 247, 304, 312, 456, 494, 624, 741, 912, 988, 1482, 1777, 1976, 2964, 3554, 3952, 5331, 5928, 7108, 10662, 11856, 14216, 21324, 23101, 28432, 33763, 42648, 46202, 67526, 69303, 85296, 92404, 101289, 135052, 138606, 184808, 202578, 270104, 277212, 369616, 405156, 438919, 540208, 554424, 810312, 877838, 1108848, 1316757, 1620624, 1755676, 2633514, 3511352, 5267028, 7022704, 10534056, 21068112]

約数ペア:

[(1, 21068112), (2, 10534056), (3, 7022704), (4, 5267028), (6, 3511352), (8, 2633514), (12, 1755676), (13, 1620624), (16, 1316757), (19, 1108848), (24, 877838), (26, 810312), (38, 554424), (39, 540208), (48, 438919), (52, 405156), (57, 369616), (76, 277212), (78, 270104), (104, 202578), (114, 184808), (152, 138606), (156, 135052), (208, 101289), (228, 92404), (247, 85296), (304, 69303), (312, 67526), (456, 46202), (494, 42648), (624, 33763), (741, 28432), (912, 23101), (988, 21324), (1482, 14216), (1777, 11856), (1976, 10662), (2964, 7108), (3554, 5928), (3952, 5331)]