2197601

素因数分解:

$7^3\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:213

約数の個数: 16

約数和(自身を含む): 2640000

約数和(自身を除く): 442399

約数列:

[1, 7, 43, 49, 149, 301, 343, 1043, 2107, 6407, 7301, 14749, 44849, 51107, 313943, 2197601]

約数ペア:

[(1, 2197601), (7, 313943), (43, 51107), (49, 44849), (149, 14749), (301, 7301), (343, 6407), (1043, 2107)]