18980997

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{19231}}^1$

素因数の和:19288

約数の個数: 16

約数和(自身を含む): 29540352

約数和(自身を除く): 10559355

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 19231, 57693, 134617, 403851, 903857, 2711571, 6326999, 18980997]

約数ペア:

[(1, 18980997), (3, 6326999), (7, 2711571), (21, 903857), (47, 403851), (141, 134617), (329, 57693), (987, 19231)]