21215106

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{983}}^1$

素因数の和:1111

約数の個数: 48

約数和(自身を含む): 50656320

約数和(自身を除く): 29441214

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 109, 198, 218, 327, 654, 981, 983, 1199, 1962, 1966, 2398, 2949, 3597, 5898, 7194, 8847, 10791, 10813, 17694, 21582, 21626, 32439, 64878, 97317, 107147, 194634, 214294, 321441, 642882, 964323, 1178617, 1928646, 2357234, 3535851, 7071702, 10607553, 21215106]

約数ペア:

[(1, 21215106), (2, 10607553), (3, 7071702), (6, 3535851), (9, 2357234), (11, 1928646), (18, 1178617), (22, 964323), (33, 642882), (66, 321441), (99, 214294), (109, 194634), (198, 107147), (218, 97317), (327, 64878), (654, 32439), (981, 21626), (983, 21582), (1199, 17694), (1962, 10813), (1966, 10791), (2398, 8847), (2949, 7194), (3597, 5898)]