19821845

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1523}}^1$

素因数の和:1684

約数の個数: 16

約数和(自身を含む): 25237440

約数和(自身を除く): 5415595

約数列:

[1, 5, 19, 95, 137, 685, 1523, 2603, 7615, 13015, 28937, 144685, 208651, 1043255, 3964369, 19821845]

約数ペア:

[(1, 19821845), (5, 3964369), (19, 1043255), (95, 208651), (137, 144685), (685, 28937), (1523, 13015), (2603, 7615)]