2178071997

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{105023}}^1$

素因数の和:105280

約数の個数: 16

約数和(自身を含む): 3011248128

約数和(自身を除く): 833176131

約数列:

[1, 3, 31, 93, 223, 669, 6913, 20739, 105023, 315069, 3255713, 9767139, 23420129, 70260387, 726023999, 2178071997]

約数ペア:

[(1, 2178071997), (3, 726023999), (31, 70260387), (93, 23420129), (223, 9767139), (669, 3255713), (6913, 315069), (20739, 105023)]