78219141

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^2$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 144904032

約数和(自身を除く): 66684891

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 49, 61, 77, 91, 143, 147, 183, 231, 273, 427, 429, 539, 637, 671, 793, 1001, 1281, 1617, 1911, 2013, 2379, 2989, 3003, 3721, 4697, 5551, 7007, 8723, 8967, 11163, 14091, 16653, 21021, 26047, 26169, 32879, 38857, 40931, 48373, 61061, 78141, 98637, 116571, 122793, 145119, 182329, 183183, 286517, 338611, 427427, 532103, 546987, 859551, 1015833, 1282281, 1596309, 2005619, 2370277, 3724721, 6016857, 7110831, 11174163, 26073047, 78219141]

約数ペア:

[(1, 78219141), (3, 26073047), (7, 11174163), (11, 7110831), (13, 6016857), (21, 3724721), (33, 2370277), (39, 2005619), (49, 1596309), (61, 1282281), (77, 1015833), (91, 859551), (143, 546987), (147, 532103), (183, 427427), (231, 338611), (273, 286517), (427, 183183), (429, 182329), (539, 145119), (637, 122793), (671, 116571), (793, 98637), (1001, 78141), (1281, 61061), (1617, 48373), (1911, 40931), (2013, 38857), (2379, 32879), (2989, 26169), (3003, 26047), (3721, 21021), (4697, 16653), (5551, 14091), (7007, 11163), (8723, 8967)]