21311085

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{48991}}^1$

素因数の和:49028

約数の個数: 16

約数和(自身を含む): 35274240

約数和(自身を除く): 13963155

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 48991, 146973, 244955, 734865, 1420739, 4262217, 7103695, 21311085]

約数ペア:

[(1, 21311085), (3, 7103695), (5, 4262217), (15, 1420739), (29, 734865), (87, 244955), (145, 146973), (435, 48991)]