21268408

素因数分解:

$2^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{3361}}^1$

素因数の和:3487

約数の個数: 32

約数和(自身を含む): 45992160

約数和(自身を除く): 24723752

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 113, 226, 452, 791, 904, 1582, 3164, 3361, 6328, 6722, 13444, 23527, 26888, 47054, 94108, 188216, 379793, 759586, 1519172, 2658551, 3038344, 5317102, 10634204, 21268408]

約数ペア:

[(1, 21268408), (2, 10634204), (4, 5317102), (7, 3038344), (8, 2658551), (14, 1519172), (28, 759586), (56, 379793), (113, 188216), (226, 94108), (452, 47054), (791, 26888), (904, 23527), (1582, 13444), (3164, 6722), (3361, 6328)]