21850321

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 24064128

約数和(自身を除く): 2213807

約数列:

[1, 17, 43, 71, 421, 731, 1207, 3053, 7157, 18103, 29891, 51901, 307751, 508147, 1285313, 21850321]

約数ペア:

[(1, 21850321), (17, 1285313), (43, 508147), (71, 307751), (421, 51901), (731, 29891), (1207, 18103), (3053, 7157)]