19793878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5477}}^1$

素因数の和:5631

約数の個数: 16

約数和(自身を含む): 32210640

約数和(自身を除く): 12416762

約数列:

[1, 2, 13, 26, 139, 278, 1807, 3614, 5477, 10954, 71201, 142402, 761303, 1522606, 9896939, 19793878]

約数ペア:

[(1, 19793878), (2, 9896939), (13, 1522606), (26, 761303), (139, 142402), (278, 71201), (1807, 10954), (3614, 5477)]