21430591

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1979}}^1$

素因数の和:2023

約数の個数: 24

約数和(自身を含む): 28440720

約数和(自身を除く): 7010129

約数列:

[1, 7, 13, 17, 49, 91, 119, 221, 637, 833, 1547, 1979, 10829, 13853, 25727, 33643, 96971, 180089, 235501, 437359, 1260623, 1648507, 3061513, 21430591]

約数ペア:

[(1, 21430591), (7, 3061513), (13, 1648507), (17, 1260623), (49, 437359), (91, 235501), (119, 180089), (221, 96971), (637, 33643), (833, 25727), (1547, 13853), (1979, 10829)]