21523295

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3191}}^1$

素因数の和:3286

約数の個数: 16

約数和(自身を含む): 27578880

約数和(自身を除く): 6055585

約数列:

[1, 5, 19, 71, 95, 355, 1349, 3191, 6745, 15955, 60629, 226561, 303145, 1132805, 4304659, 21523295]

約数ペア:

[(1, 21523295), (5, 4304659), (19, 1132805), (71, 303145), (95, 226561), (355, 60629), (1349, 15955), (3191, 6745)]