21000377040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{10433}}^1\times {\mathrm{8387}}^1$

素因数の和:18836

約数の個数: 80

約数和(自身を含む): 65115171648

約数和(自身を除く): 44114794608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 8387, 10433, 16774, 20866, 25161, 31299, 33548, 41732, 41935, 50322, 52165, 62598, 67096, 83464, 83870, 100644, 104330, 125196, 125805, 134192, 156495, 166928, 167740, 201288, 208660, 250392, 251610, 312990, 335480, 402576, 417320, 500784, 503220, 625980, 670960, 834640, 1006440, 1251960, 2012880, 2503920, 87501571, 175003142, 262504713, 350006284, 437507855, 525009426, 700012568, 875015710, 1050018852, 1312523565, 1400025136, 1750031420, 2100037704, 2625047130, 3500062840, 4200075408, 5250094260, 7000125680, 10500188520, 21000377040]

約数ペア:

[(1, 21000377040), (2, 10500188520), (3, 7000125680), (4, 5250094260), (5, 4200075408), (6, 3500062840), (8, 2625047130), (10, 2100037704), (12, 1750031420), (15, 1400025136), (16, 1312523565), (20, 1050018852), (24, 875015710), (30, 700012568), (40, 525009426), (48, 437507855), (60, 350006284), (80, 262504713), (120, 175003142), (240, 87501571), (8387, 2503920), (10433, 2012880), (16774, 1251960), (20866, 1006440), (25161, 834640), (31299, 670960), (33548, 625980), (41732, 503220), (41935, 500784), (50322, 417320), (52165, 402576), (62598, 335480), (67096, 312990), (83464, 251610), (83870, 250392), (100644, 208660), (104330, 201288), (125196, 167740), (125805, 166928), (134192, 156495)]