18980178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{451909}}^1$

素因数の和:451921

約数の個数: 16

約数和(自身を含む): 43383360

約数和(自身を除く): 24403182

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 451909, 903818, 1355727, 2711454, 3163363, 6326726, 9490089, 18980178]

約数ペア:

[(1, 18980178), (2, 9490089), (3, 6326726), (6, 3163363), (7, 2711454), (14, 1355727), (21, 903818), (42, 451909)]