20211645

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{28669}}^1$

素因数の和:28724

約数の個数: 16

約数和(自身を含む): 33027840

約数和(自身を除く): 12816195

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 28669, 86007, 143345, 430035, 1347443, 4042329, 6737215, 20211645]

約数ペア:

[(1, 20211645), (3, 6737215), (5, 4042329), (15, 1347443), (47, 430035), (141, 143345), (235, 86007), (705, 28669)]