21471604

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{433}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 49871808

約数和(自身を除く): 28400204

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 49, 77, 92, 98, 154, 161, 196, 253, 308, 322, 433, 506, 539, 644, 866, 1012, 1078, 1127, 1732, 1771, 2156, 2254, 3031, 3542, 4508, 4763, 6062, 7084, 9526, 9959, 12124, 12397, 19052, 19918, 21217, 24794, 33341, 39836, 42434, 49588, 66682, 69713, 84868, 109549, 133364, 139426, 219098, 233387, 278852, 438196, 466774, 487991, 766843, 933548, 975982, 1533686, 1951964, 3067372, 5367901, 10735802, 21471604]

約数ペア:

[(1, 21471604), (2, 10735802), (4, 5367901), (7, 3067372), (11, 1951964), (14, 1533686), (22, 975982), (23, 933548), (28, 766843), (44, 487991), (46, 466774), (49, 438196), (77, 278852), (92, 233387), (98, 219098), (154, 139426), (161, 133364), (196, 109549), (253, 84868), (308, 69713), (322, 66682), (433, 49588), (506, 42434), (539, 39836), (644, 33341), (866, 24794), (1012, 21217), (1078, 19918), (1127, 19052), (1732, 12397), (1771, 12124), (2156, 9959), (2254, 9526), (3031, 7084), (3542, 6062), (4508, 4763)]