19676293

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 27578880

約数和(自身を除く): 7902587

約数列:

[1, 7, 13, 17, 23, 49, 79, 91, 119, 161, 221, 299, 391, 553, 637, 833, 1027, 1127, 1343, 1547, 1817, 2093, 2737, 3871, 5083, 7189, 9401, 10829, 12719, 14651, 17459, 19159, 23621, 30889, 35581, 50323, 65807, 89033, 122213, 165347, 216223, 249067, 401557, 855491, 1157429, 1513561, 2810899, 19676293]

約数ペア:

[(1, 19676293), (7, 2810899), (13, 1513561), (17, 1157429), (23, 855491), (49, 401557), (79, 249067), (91, 216223), (119, 165347), (161, 122213), (221, 89033), (299, 65807), (391, 50323), (553, 35581), (637, 30889), (833, 23621), (1027, 19159), (1127, 17459), (1343, 14651), (1547, 12719), (1817, 10829), (2093, 9401), (2737, 7189), (3871, 5083)]