21563529

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{719}}^1\times {\mathrm{769}}^1$

素因数の和:1504

約数の個数: 16

約数和(自身を含む): 31046400

約数和(自身を除く): 9482871

約数列:

[1, 3, 13, 39, 719, 769, 2157, 2307, 9347, 9997, 28041, 29991, 552911, 1658733, 7187843, 21563529]

約数ペア:

[(1, 21563529), (3, 7187843), (13, 1658733), (39, 552911), (719, 29991), (769, 28041), (2157, 9997), (2307, 9347)]