21004560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29173}}^1$

素因数の和:29192

約数の個数: 60

約数和(自身を含む): 70542732

約数和(自身を除く): 49538172

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, 29173, 58346, 87519, 116692, 145865, 175038, 233384, 262557, 291730, 350076, 437595, 466768, 525114, 583460, 700152, 875190, 1050228, 1166920, 1312785, 1400304, 1750380, 2100456, 2333840, 2625570, 3500760, 4200912, 5251140, 7001520, 10502280, 21004560]

約数ペア:

[(1, 21004560), (2, 10502280), (3, 7001520), (4, 5251140), (5, 4200912), (6, 3500760), (8, 2625570), (9, 2333840), (10, 2100456), (12, 1750380), (15, 1400304), (16, 1312785), (18, 1166920), (20, 1050228), (24, 875190), (30, 700152), (36, 583460), (40, 525114), (45, 466768), (48, 437595), (60, 350076), (72, 291730), (80, 262557), (90, 233384), (120, 175038), (144, 145865), (180, 116692), (240, 87519), (360, 58346), (720, 29173)]