21124662

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:365

約数の個数: 48

約数和(自身を含む): 46484928

約数和(自身を除く): 25360266

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 83, 166, 169, 249, 251, 338, 498, 502, 507, 753, 1014, 1079, 1506, 2158, 3237, 3263, 6474, 6526, 9789, 14027, 19578, 20833, 28054, 41666, 42081, 42419, 62499, 84162, 84838, 124998, 127257, 254514, 270829, 541658, 812487, 1624974, 3520777, 7041554, 10562331, 21124662]

約数ペア:

[(1, 21124662), (2, 10562331), (3, 7041554), (6, 3520777), (13, 1624974), (26, 812487), (39, 541658), (78, 270829), (83, 254514), (166, 127257), (169, 124998), (249, 84838), (251, 84162), (338, 62499), (498, 42419), (502, 42081), (507, 41666), (753, 28054), (1014, 20833), (1079, 19578), (1506, 14027), (2158, 9789), (3237, 6526), (3263, 6474)]