21229911

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{13327}}^1$

素因数の和:13395

約数の個数: 16

約数和(自身を含む): 31987200

約数和(自身を除く): 10757289

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 13327, 39981, 119943, 359829, 786293, 2358879, 7076637, 21229911]

約数ペア:

[(1, 21229911), (3, 7076637), (9, 2358879), (27, 786293), (59, 359829), (177, 119943), (531, 39981), (1593, 13327)]