21335760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29633}}^1$

素因数の和:29652

約数の個数: 60

約数和(自身を含む): 71655012

約数和(自身を除く): 50319252

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29633, 59266, 88899, 118532, 148165, 177798, 237064, 266697, 296330, 355596, 444495, 474128, 533394, 592660, 711192, 888990, 1066788, 1185320, 1333485, 1422384, 1777980, 2133576, 2370640, 2666970, 3555960, 4267152, 5333940, 7111920, 10667880, 21335760]

約数ペア:

[(1, 21335760), (2, 10667880), (3, 7111920), (4, 5333940), (5, 4267152), (6, 3555960), (8, 2666970), (9, 2370640), (10, 2133576), (12, 1777980), (15, 1422384), (16, 1333485), (18, 1185320), (20, 1066788), (24, 888990), (30, 711192), (36, 592660), (40, 533394), (45, 474128), (48, 444495), (60, 355596), (72, 296330), (80, 266697), (90, 237064), (120, 177798), (144, 148165), (180, 118532), (240, 88899), (360, 59266), (720, 29633)]