21227925

素因数分解:

$3^1\times 5^2\times {\mathrm{349}}^1\times {\mathrm{811}}^1$

素因数の和:1173

約数の個数: 24

約数和(自身を含む): 35240800

約数和(自身を除く): 14012875

約数列:

[1, 3, 5, 15, 25, 75, 349, 811, 1047, 1745, 2433, 4055, 5235, 8725, 12165, 20275, 26175, 60825, 283039, 849117, 1415195, 4245585, 7075975, 21227925]

約数ペア:

[(1, 21227925), (3, 7075975), (5, 4245585), (15, 1415195), (25, 849117), (75, 283039), (349, 60825), (811, 26175), (1047, 20275), (1745, 12165), (2433, 8725), (4055, 5235)]