19916845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16127}}^1$

素因数の和:16164

約数の個数: 16

約数和(自身を含む): 27095040

約数和(自身を除く): 7178195

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 16127, 80635, 209651, 306413, 1048255, 1532065, 3983369, 19916845]

約数ペア:

[(1, 19916845), (5, 3983369), (13, 1532065), (19, 1048255), (65, 306413), (95, 209651), (247, 80635), (1235, 16127)]