21587377

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1877}}^1$

素因数の和:1968

約数の個数: 16

約数和(自身を含む): 25961472

約数和(自身を除く): 4374095

約数列:

[1, 7, 31, 53, 217, 371, 1643, 1877, 11501, 13139, 58187, 99481, 407309, 696367, 3083911, 21587377]

約数ペア:

[(1, 21587377), (7, 3083911), (31, 696367), (53, 407309), (217, 99481), (371, 58187), (1643, 13139), (1877, 11501)]