21031101

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25679}}^1$

素因数の和:25705

約数の個数: 24

約数和(自身を含む): 37390080

約数和(自身を除く): 16358979

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 25679, 77037, 179753, 231111, 333827, 539259, 1001481, 1617777, 2336789, 3004443, 7010367, 21031101]

約数ペア:

[(1, 21031101), (3, 7010367), (7, 3004443), (9, 2336789), (13, 1617777), (21, 1001481), (39, 539259), (63, 333827), (91, 231111), (117, 179753), (273, 77037), (819, 25679)]