21501369

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{4657}}^1$

素因数の和:4691

約数の個数: 24

約数和(自身を含む): 33910240

約数和(自身を除く): 12408871

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 1539, 4617, 4657, 13971, 41913, 88483, 125739, 265449, 377217, 796347, 1131651, 2389041, 7167123, 21501369]

約数ペア:

[(1, 21501369), (3, 7167123), (9, 2389041), (19, 1131651), (27, 796347), (57, 377217), (81, 265449), (171, 125739), (243, 88483), (513, 41913), (1539, 13971), (4617, 4657)]