20171901

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{1559}}^1$

素因数の和:1808

約数の個数: 16

約数和(自身を含む): 28454400

約数和(自身を除く): 8282499

約数列:

[1, 3, 19, 57, 227, 681, 1559, 4313, 4677, 12939, 29621, 88863, 353893, 1061679, 6723967, 20171901]

約数ペア:

[(1, 20171901), (3, 6723967), (19, 1061679), (57, 353893), (227, 88863), (681, 29621), (1559, 12939), (4313, 4677)]