19980321

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{3467}}^1$

素因数の和:3600

約数の個数: 16

約数和(自身を含む): 28465344

約数和(自身を除く): 8485023

約数列:

[1, 3, 17, 51, 113, 339, 1921, 3467, 5763, 10401, 58939, 176817, 391771, 1175313, 6660107, 19980321]

約数ペア:

[(1, 19980321), (3, 6660107), (17, 1175313), (51, 391771), (113, 176817), (339, 58939), (1921, 10401), (3467, 5763)]