21407040

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{7433}}^1$

素因数の和:7456

約数の個数: 84

約数和(自身を含む): 73641204

約数和(自身を除く): 52234164

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 7433, 14866, 22299, 29732, 37165, 44598, 59464, 66897, 74330, 89196, 111495, 118928, 133794, 148660, 178392, 222990, 237856, 267588, 297320, 334485, 356784, 445980, 475712, 535176, 594640, 668970, 713568, 891960, 1070352, 1189280, 1337940, 1427136, 1783920, 2140704, 2378560, 2675880, 3567840, 4281408, 5351760, 7135680, 10703520, 21407040]

約数ペア:

[(1, 21407040), (2, 10703520), (3, 7135680), (4, 5351760), (5, 4281408), (6, 3567840), (8, 2675880), (9, 2378560), (10, 2140704), (12, 1783920), (15, 1427136), (16, 1337940), (18, 1189280), (20, 1070352), (24, 891960), (30, 713568), (32, 668970), (36, 594640), (40, 535176), (45, 475712), (48, 445980), (60, 356784), (64, 334485), (72, 297320), (80, 267588), (90, 237856), (96, 222990), (120, 178392), (144, 148660), (160, 133794), (180, 118928), (192, 111495), (240, 89196), (288, 74330), (320, 66897), (360, 59464), (480, 44598), (576, 37165), (720, 29732), (960, 22299), (1440, 14866), (2880, 7433)]