21098559

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{337}}^1\times {\mathrm{509}}^1$

素因数の和:890

約数の個数: 16

約数和(自身を含む): 28959840

約数和(自身を除く): 7861281

約数列:

[1, 3, 41, 123, 337, 509, 1011, 1527, 13817, 20869, 41451, 62607, 171533, 514599, 7032853, 21098559]

約数ペア:

[(1, 21098559), (3, 7032853), (41, 514599), (123, 171533), (337, 62607), (509, 41451), (1011, 20869), (1527, 13817)]