18972357

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{7019}}^1$

素因数の和:7092

約数の個数: 16

約数和(自身を含む): 27293760

約数和(自身を除く): 8321403

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 7019, 21057, 119323, 357969, 372007, 1116021, 6324119, 18972357]

約数ペア:

[(1, 18972357), (3, 6324119), (17, 1116021), (51, 372007), (53, 357969), (159, 119323), (901, 21057), (2703, 7019)]