19993491

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16703}}^1$

素因数の和:16735

約数の個数: 24

約数和(自身を含む): 34744320

約数和(自身を除く): 14750829

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 16703, 50109, 116921, 150327, 317357, 350763, 952071, 1052289, 2221499, 2856213, 6664497, 19993491]

約数ペア:

[(1, 19993491), (3, 6664497), (7, 2856213), (9, 2221499), (19, 1052289), (21, 952071), (57, 350763), (63, 317357), (133, 150327), (171, 116921), (399, 50109), (1197, 16703)]