28706587

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16603}}^1$

素因数の和:16642

約数の個数: 16

約数和(自身を含む): 37192960

約数和(自身を除く): 8486373

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 16603, 116221, 215839, 315457, 1510873, 2208199, 4100941, 28706587]

約数ペア:

[(1, 28706587), (7, 4100941), (13, 2208199), (19, 1510873), (91, 315457), (133, 215839), (247, 116221), (1729, 16603)]