21211473

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1\times {\mathrm{521}}^1$

素因数の和:896

約数の個数: 16

約数和(自身を含む): 29115072

約数和(自身を除く): 7903599

約数列:

[1, 3, 41, 123, 331, 521, 993, 1563, 13571, 21361, 40713, 64083, 172451, 517353, 7070491, 21211473]

約数ペア:

[(1, 21211473), (3, 7070491), (41, 517353), (123, 172451), (331, 64083), (521, 40713), (993, 21361), (1563, 13571)]