20808022

素因数分解:

$2^1\times {\mathrm{29}}^2\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:288

約数の個数: 24

約数和(自身を含む): 32923800

約数和(自身を除く): 12115778

約数列:

[1, 2, 29, 58, 89, 139, 178, 278, 841, 1682, 2581, 4031, 5162, 8062, 12371, 24742, 74849, 116899, 149698, 233798, 358759, 717518, 10404011, 20808022]

約数ペア:

[(1, 20808022), (2, 10404011), (29, 717518), (58, 358759), (89, 233798), (139, 149698), (178, 116899), (278, 74849), (841, 24742), (1682, 12371), (2581, 8062), (4031, 5162)]