21012446

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:225

約数の個数: 48

約数和(自身を含む): 39844224

約数和(自身を除く): 18831778

約数列:

[1, 2, 7, 13, 14, 26, 83, 91, 107, 166, 169, 182, 214, 338, 581, 749, 1079, 1162, 1183, 1391, 1498, 2158, 2366, 2782, 7553, 8881, 9737, 14027, 15106, 17762, 18083, 19474, 28054, 36166, 62167, 98189, 115453, 124334, 126581, 196378, 230906, 253162, 808171, 1500889, 1616342, 3001778, 10506223, 21012446]

約数ペア:

[(1, 21012446), (2, 10506223), (7, 3001778), (13, 1616342), (14, 1500889), (26, 808171), (83, 253162), (91, 230906), (107, 196378), (166, 126581), (169, 124334), (182, 115453), (214, 98189), (338, 62167), (581, 36166), (749, 28054), (1079, 19474), (1162, 18083), (1183, 17762), (1391, 15106), (1498, 14027), (2158, 9737), (2366, 8881), (2782, 7553)]