21537279

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{41983}}^1$

素因数の和:42011

約数の個数: 16

約数和(自身を含む): 33587200

約数和(自身を除く): 12049921

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 41983, 125949, 377847, 797677, 1133541, 2393031, 7179093, 21537279]

約数ペア:

[(1, 21537279), (3, 7179093), (9, 2393031), (19, 1133541), (27, 797677), (57, 377847), (171, 125949), (513, 41983)]