31216221

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{7937}}^1$

素因数の和:7985

約数の個数: 24

約数和(自身を含む): 49533120

約数和(自身を除く): 18316899

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 7937, 23811, 71433, 150803, 182551, 452409, 547653, 1357227, 1642959, 3468469, 10405407, 31216221]

約数ペア:

[(1, 31216221), (3, 10405407), (9, 3468469), (19, 1642959), (23, 1357227), (57, 547653), (69, 452409), (171, 182551), (207, 150803), (437, 71433), (1311, 23811), (3933, 7937)]