221491265

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{607}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 294174720

約数和(自身を除く): 72683455

約数列:

[1, 5, 19, 23, 95, 115, 167, 437, 607, 835, 2185, 3035, 3173, 3841, 11533, 13961, 15865, 19205, 57665, 69805, 72979, 101369, 265259, 364895, 506845, 1326295, 1926011, 2331487, 9630055, 11657435, 44298253, 221491265]

約数ペア:

[(1, 221491265), (5, 44298253), (19, 11657435), (23, 9630055), (95, 2331487), (115, 1926011), (167, 1326295), (437, 506845), (607, 364895), (835, 265259), (2185, 101369), (3035, 72979), (3173, 69805), (3841, 57665), (11533, 19205), (13961, 15865)]