21178446

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^2\times {\mathrm{83}}^1$

素因数の和:197

約数の個数: 48

約数和(自身を含む): 45795456

約数和(自身を除く): 24617010

約数列:

[1, 2, 3, 6, 23, 43, 46, 69, 83, 86, 129, 138, 166, 249, 258, 498, 989, 1849, 1909, 1978, 2967, 3569, 3698, 3818, 5547, 5727, 5934, 7138, 10707, 11094, 11454, 21414, 42527, 82087, 85054, 127581, 153467, 164174, 246261, 255162, 306934, 460401, 492522, 920802, 3529741, 7059482, 10589223, 21178446]

約数ペア:

[(1, 21178446), (2, 10589223), (3, 7059482), (6, 3529741), (23, 920802), (43, 492522), (46, 460401), (69, 306934), (83, 255162), (86, 246261), (129, 164174), (138, 153467), (166, 127581), (249, 85054), (258, 82087), (498, 42527), (989, 21414), (1849, 11454), (1909, 11094), (1978, 10707), (2967, 7138), (3569, 5934), (3698, 5727), (3818, 5547)]