19747145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{569}}^1\times {\mathrm{631}}^1$

素因数の和:1216

約数の個数: 16

約数和(自身を含む): 25937280

約数和(自身を除く): 6190135

約数列:

[1, 5, 11, 55, 569, 631, 2845, 3155, 6259, 6941, 31295, 34705, 359039, 1795195, 3949429, 19747145]

約数ペア:

[(1, 19747145), (5, 3949429), (11, 1795195), (55, 359039), (569, 34705), (631, 31295), (2845, 6941), (3155, 6259)]