217620977

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{4013}}^1$

素因数の和:4208

約数の個数: 16

約数和(自身を含む): 254840832

約数和(自身を除く): 37219855

約数列:

[1, 7, 61, 127, 427, 889, 4013, 7747, 28091, 54229, 244793, 509651, 1713551, 3567557, 31088711, 217620977]

約数ペア:

[(1, 217620977), (7, 31088711), (61, 3567557), (127, 1713551), (427, 509651), (889, 244793), (4013, 54229), (7747, 28091)]