20918055

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{29671}}^1$

素因数の和:29726

約数の個数: 16

約数和(自身を含む): 34182144

約数和(自身を除く): 13264089

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 29671, 89013, 148355, 445065, 1394537, 4183611, 6972685, 20918055]

約数ペア:

[(1, 20918055), (3, 6972685), (5, 4183611), (15, 1394537), (47, 445065), (141, 148355), (235, 89013), (705, 29671)]