28215764

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{211}}^1\times {\mathrm{331}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 50254176

約数和(自身を除く): 22038412

約数列:

[1, 2, 4, 101, 202, 211, 331, 404, 422, 662, 844, 1324, 21311, 33431, 42622, 66862, 69841, 85244, 133724, 139682, 279364, 7053941, 14107882, 28215764]

約数ペア:

[(1, 28215764), (2, 14107882), (4, 7053941), (101, 279364), (202, 139682), (211, 133724), (331, 85244), (404, 69841), (422, 66862), (662, 42622), (844, 33431), (1324, 21311)]