20743215

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{29423}}^1$

素因数の和:29478

約数の個数: 16

約数和(自身を含む): 33896448

約数和(自身を除く): 13153233

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 29423, 88269, 147115, 441345, 1382881, 4148643, 6914405, 20743215]

約数ペア:

[(1, 20743215), (3, 6914405), (5, 4148643), (15, 1382881), (47, 441345), (141, 147115), (235, 88269), (705, 29423)]