21232053

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 31449600

約数和(自身を除く): 10217547

約数列:

[1, 3, 9, 71, 149, 213, 223, 447, 639, 669, 1341, 2007, 10579, 15833, 31737, 33227, 47499, 95211, 99681, 142497, 299043, 2359117, 7077351, 21232053]

約数ペア:

[(1, 21232053), (3, 7077351), (9, 2359117), (71, 299043), (149, 142497), (213, 99681), (223, 95211), (447, 47499), (639, 33227), (669, 31737), (1341, 15833), (2007, 10579)]