219172473

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{208141}}^1$

素因数の和:208166

約数の個数: 20

約数和(自身を含む): 352592548

約数和(自身を除く): 133420075

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 208141, 624423, 1873269, 2705833, 5619807, 8117499, 16859421, 24352497, 73057491, 219172473]

約数ペア:

[(1, 219172473), (3, 73057491), (9, 24352497), (13, 16859421), (27, 8117499), (39, 5619807), (81, 2705833), (117, 1873269), (351, 624423), (1053, 208141)]