17718987

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{401}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 28094976

約数和(自身を除く): 10375989

約数列:

[1, 3, 11, 13, 33, 39, 103, 143, 309, 401, 429, 1133, 1203, 1339, 3399, 4017, 4411, 5213, 13233, 14729, 15639, 41303, 44187, 57343, 123909, 172029, 454333, 536939, 1362999, 1610817, 5906329, 17718987]

約数ペア:

[(1, 17718987), (3, 5906329), (11, 1610817), (13, 1362999), (33, 536939), (39, 454333), (103, 172029), (143, 123909), (309, 57343), (401, 44187), (429, 41303), (1133, 15639), (1203, 14729), (1339, 13233), (3399, 5213), (4017, 4411)]