51721797

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1\times {\mathrm{809}}^1$

素因数の和:1124

約数の個数: 16

約数和(自身を含む): 70061760

約数和(自身を除く): 18339963

約数列:

[1, 3, 101, 211, 303, 633, 809, 2427, 21311, 63933, 81709, 170699, 245127, 512097, 17240599, 51721797]

約数ペア:

[(1, 51721797), (3, 17240599), (101, 512097), (211, 245127), (303, 170699), (633, 81709), (809, 63933), (2427, 21311)]