20278965

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{193133}}^1$

素因数の和:193148

約数の個数: 16

約数和(自身を含む): 37081728

約数和(自身を除く): 16802763

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 193133, 579399, 965665, 1351931, 2896995, 4055793, 6759655, 20278965]

約数ペア:

[(1, 20278965), (3, 6759655), (5, 4055793), (7, 2896995), (15, 1351931), (21, 965665), (35, 579399), (105, 193133)]