87241749

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{218651}}^1$

素因数の和:218680

約数の個数: 16

約数和(自身を含む): 139937280

約数和(自身を除く): 52695531

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 218651, 655953, 1530557, 4154369, 4591671, 12463107, 29080583, 87241749]

約数ペア:

[(1, 87241749), (3, 29080583), (7, 12463107), (19, 4591671), (21, 4154369), (57, 1530557), (133, 655953), (399, 218651)]