21739821

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{14699}}^1$

素因数の和:14748

約数の個数: 16

約数和(自身を含む): 31752000

約数和(自身を除く): 10012179

約数列:

[1, 3, 17, 29, 51, 87, 493, 1479, 14699, 44097, 249883, 426271, 749649, 1278813, 7246607, 21739821]

約数ペア:

[(1, 21739821), (3, 7246607), (17, 1278813), (29, 749649), (51, 426271), (87, 249883), (493, 44097), (1479, 14699)]