18129503

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 21403200

約数和(自身を除く): 3273697

約数列:

[1, 7, 41, 181, 287, 349, 1267, 2443, 7421, 14309, 51947, 63169, 100163, 442183, 2589929, 18129503]

約数ペア:

[(1, 18129503), (7, 2589929), (41, 442183), (181, 100163), (287, 63169), (349, 51947), (1267, 14309), (2443, 7421)]