19965147

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{1567}}^1$

素因数の和:1738

約数の個数: 16

約数和(自身を含む): 27697152

約数和(自身を除く): 7732005

約数列:

[1, 3, 31, 93, 137, 411, 1567, 4247, 4701, 12741, 48577, 145731, 214679, 644037, 6655049, 19965147]

約数ペア:

[(1, 19965147), (3, 6655049), (31, 644037), (93, 214679), (137, 145731), (411, 48577), (1567, 12741), (4247, 4701)]