21121342

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14803778

約数列:

[1, 2, 11, 22, 43, 83, 86, 166, 269, 473, 538, 913, 946, 1826, 2959, 3569, 5918, 7138, 11567, 22327, 23134, 39259, 44654, 78518, 127237, 245597, 254474, 491194, 960061, 1920122, 10560671, 21121342]

約数ペア:

[(1, 21121342), (2, 10560671), (11, 1920122), (22, 960061), (43, 491194), (83, 254474), (86, 245597), (166, 127237), (269, 78518), (473, 44654), (538, 39259), (913, 23134), (946, 22327), (1826, 11567), (2959, 7138), (3569, 5918)]