19171551

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{48049}}^1$

素因数の和:48078

約数の個数: 16

約数和(自身を含む): 30752000

約数和(自身を除く): 11580449

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 48049, 144147, 336343, 912931, 1009029, 2738793, 6390517, 19171551]

約数ペア:

[(1, 19171551), (3, 6390517), (7, 2738793), (19, 1009029), (21, 912931), (57, 336343), (133, 144147), (399, 48049)]