19720312

素因数分解:

$2^3\times {\mathrm{181}}^1\times {\mathrm{13619}}^1$

素因数の和:13806

約数の個数: 16

約数和(自身を含む): 37182600

約数和(自身を除く): 17462288

約数列:

[1, 2, 4, 8, 181, 362, 724, 1448, 13619, 27238, 54476, 108952, 2465039, 4930078, 9860156, 19720312]

約数ペア:

[(1, 19720312), (2, 9860156), (4, 4930078), (8, 2465039), (181, 108952), (362, 54476), (724, 27238), (1448, 13619)]