19881423

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{15667}}^1$

素因数の和:15723

約数の個数: 16

約数和(自身を含む): 30082560

約数和(自身を除く): 10201137

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 15667, 47001, 141003, 423009, 736349, 2209047, 6627141, 19881423]

約数ペア:

[(1, 19881423), (3, 6627141), (9, 2209047), (27, 736349), (47, 423009), (141, 141003), (423, 47001), (1269, 15667)]