19994979

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1\times {\mathrm{353}}^1$

素因数の和:674

約数の個数: 16

約数和(自身を含む): 27187200

約数和(自身を除く): 7192221

約数列:

[1, 3, 79, 237, 239, 353, 717, 1059, 18881, 27887, 56643, 83661, 84367, 253101, 6664993, 19994979]

約数ペア:

[(1, 19994979), (3, 6664993), (79, 253101), (237, 84367), (239, 83661), (353, 56643), (717, 27887), (1059, 18881)]