18909287

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{677}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 21088512

約数和(自身を除く): 2179225

約数列:

[1, 17, 31, 53, 527, 677, 901, 1643, 11509, 20987, 27931, 35881, 356779, 609977, 1112311, 18909287]

約数ペア:

[(1, 18909287), (17, 1112311), (31, 609977), (53, 356779), (527, 35881), (677, 27931), (901, 20987), (1643, 11509)]