19939215

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78193}}^1$

素因数の和:78218

約数の個数: 16

約数和(自身を含む): 33779808

約数和(自身を除く): 13840593

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 78193, 234579, 390965, 1172895, 1329281, 3987843, 6646405, 19939215]

約数ペア:

[(1, 19939215), (3, 6646405), (5, 3987843), (15, 1329281), (17, 1172895), (51, 390965), (85, 234579), (255, 78193)]