28392987

素因数分解:

$3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{3137}}^1$

素因数の和:3578

約数の個数: 16

約数和(自身を含む): 43379712

約数和(自身を除く): 14986725

約数列:

[1, 3, 7, 21, 431, 1293, 3017, 3137, 9051, 9411, 21959, 65877, 1352047, 4056141, 9464329, 28392987]

約数ペア:

[(1, 28392987), (3, 9464329), (7, 4056141), (21, 1352047), (431, 65877), (1293, 21959), (3017, 9411), (3137, 9051)]