12903225

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4001}}^1$

素因数の和:4057

約数の個数: 24

約数和(自身を含む): 21834912

約数和(自身を除く): 8931687

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 4001, 12003, 20005, 60015, 100025, 172043, 300075, 516129, 860215, 2580645, 4301075, 12903225]

約数ペア:

[(1, 12903225), (3, 4301075), (5, 2580645), (15, 860215), (25, 516129), (43, 300075), (75, 172043), (129, 100025), (215, 60015), (645, 20005), (1075, 12003), (3225, 4001)]