12878257

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2617}}^1$

素因数の和:2680

約数の個数: 16

約数和(自身を含む): 15917440

約数和(自身を除く): 3039183

約数列:

[1, 7, 19, 37, 133, 259, 703, 2617, 4921, 18319, 49723, 96829, 348061, 677803, 1839751, 12878257]

約数ペア:

[(1, 12878257), (7, 1839751), (19, 677803), (37, 348061), (133, 96829), (259, 49723), (703, 18319), (2617, 4921)]