208889499

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{389}}^1$

素因数の和:700

約数の個数: 48

約数和(自身を含む): 351056160

約数和(自身を除く): 142166661

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 281, 389, 637, 843, 1167, 1911, 1967, 2723, 3653, 5057, 5901, 8169, 10959, 13769, 15171, 19061, 25571, 35399, 41307, 57183, 76713, 106197, 109309, 178997, 247793, 327927, 536991, 743379, 765163, 1421017, 2295489, 4263051, 5356141, 9947119, 16068423, 29841357, 69629833, 208889499]

約数ペア:

[(1, 208889499), (3, 69629833), (7, 29841357), (13, 16068423), (21, 9947119), (39, 5356141), (49, 4263051), (91, 2295489), (147, 1421017), (273, 765163), (281, 743379), (389, 536991), (637, 327927), (843, 247793), (1167, 178997), (1911, 109309), (1967, 106197), (2723, 76713), (3653, 57183), (5057, 41307), (5901, 35399), (8169, 25571), (10959, 19061), (13769, 15171)]