212347971

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1429}}^1$

素因数の和:1544

約数の個数: 48

約数和(自身を含む): 356928000

約数和(自身を除く): 144580029

約数列:

[1, 3, 9, 11, 19, 33, 57, 79, 99, 171, 209, 237, 627, 711, 869, 1429, 1501, 1881, 2607, 4287, 4503, 7821, 12861, 13509, 15719, 16511, 27151, 47157, 49533, 81453, 112891, 141471, 148599, 244359, 298661, 338673, 895983, 1016019, 1241801, 2144929, 2687949, 3725403, 6434787, 11176209, 19304361, 23594219, 70782657, 212347971]

約数ペア:

[(1, 212347971), (3, 70782657), (9, 23594219), (11, 19304361), (19, 11176209), (33, 6434787), (57, 3725403), (79, 2687949), (99, 2144929), (171, 1241801), (209, 1016019), (237, 895983), (627, 338673), (711, 298661), (869, 244359), (1429, 148599), (1501, 141471), (1881, 112891), (2607, 81453), (4287, 49533), (4503, 47157), (7821, 27151), (12861, 16511), (13509, 15719)]