1811216

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:311

約数の個数: 40

約数和(自身を含む): 3937248

約数和(自身を除く): 2126032

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 164, 176, 251, 328, 451, 502, 656, 902, 1004, 1804, 2008, 2761, 3608, 4016, 5522, 7216, 10291, 11044, 20582, 22088, 41164, 44176, 82328, 113201, 164656, 226402, 452804, 905608, 1811216]

約数ペア:

[(1, 1811216), (2, 905608), (4, 452804), (8, 226402), (11, 164656), (16, 113201), (22, 82328), (41, 44176), (44, 41164), (82, 22088), (88, 20582), (164, 11044), (176, 10291), (251, 7216), (328, 5522), (451, 4016), (502, 3608), (656, 2761), (902, 2008), (1004, 1804)]