21655216

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3001}}^1$

素因数の和:3061

約数の個数: 40

約数和(自身を含む): 46903248

約数和(自身を除く): 25248032

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 164, 176, 328, 451, 656, 902, 1804, 3001, 3608, 6002, 7216, 12004, 24008, 33011, 48016, 66022, 123041, 132044, 246082, 264088, 492164, 528176, 984328, 1353451, 1968656, 2706902, 5413804, 10827608, 21655216]

約数ペア:

[(1, 21655216), (2, 10827608), (4, 5413804), (8, 2706902), (11, 1968656), (16, 1353451), (22, 984328), (41, 528176), (44, 492164), (82, 264088), (88, 246082), (164, 132044), (176, 123041), (328, 66022), (451, 48016), (656, 33011), (902, 24008), (1804, 12004), (3001, 7216), (3608, 6002)]