21000240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29167}}^1$

素因数の和:29186

約数の個数: 60

約数和(自身を含む): 70528224

約数和(自身を除く): 49527984

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, 29167, 58334, 87501, 116668, 145835, 175002, 233336, 262503, 291670, 350004, 437505, 466672, 525006, 583340, 700008, 875010, 1050012, 1166680, 1312515, 1400016, 1750020, 2100024, 2333360, 2625030, 3500040, 4200048, 5250060, 7000080, 10500120, 21000240]

約数ペア:

[(1, 21000240), (2, 10500120), (3, 7000080), (4, 5250060), (5, 4200048), (6, 3500040), (8, 2625030), (9, 2333360), (10, 2100024), (12, 1750020), (15, 1400016), (16, 1312515), (18, 1166680), (20, 1050012), (24, 875010), (30, 700008), (36, 583340), (40, 525006), (45, 466672), (48, 437505), (60, 350004), (72, 291670), (80, 262503), (90, 233336), (120, 175002), (144, 145835), (180, 116668), (240, 87501), (360, 58334), (720, 29167)]