19533879

素因数分解:

$3^4\times {\mathrm{349}}^1\times {\mathrm{691}}^1$

素因数の和:1052

約数の個数: 20

約数和(自身を含む): 29306200

約数和(自身を除く): 9772321

約数列:

[1, 3, 9, 27, 81, 349, 691, 1047, 2073, 3141, 6219, 9423, 18657, 28269, 55971, 241159, 723477, 2170431, 6511293, 19533879]

約数ペア:

[(1, 19533879), (3, 6511293), (9, 2170431), (27, 723477), (81, 241159), (349, 55971), (691, 28269), (1047, 18657), (2073, 9423), (3141, 6219)]