247075563

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 415641600

約数和(自身を除く): 168566037

約数列:

[1, 3, 7, 19, 21, 29, 57, 87, 131, 133, 163, 203, 393, 399, 489, 551, 609, 917, 1141, 1653, 2489, 2751, 3097, 3423, 3799, 3857, 4727, 7467, 9291, 11397, 11571, 14181, 17423, 21353, 21679, 26593, 33089, 52269, 64059, 65037, 72181, 79779, 89813, 99267, 149471, 216543, 269439, 405707, 448413, 505267, 619237, 628691, 1217121, 1515801, 1857711, 1886073, 2839949, 4334659, 8519847, 11765503, 13003977, 35296509, 82358521, 247075563]

約数ペア:

[(1, 247075563), (3, 82358521), (7, 35296509), (19, 13003977), (21, 11765503), (29, 8519847), (57, 4334659), (87, 2839949), (131, 1886073), (133, 1857711), (163, 1515801), (203, 1217121), (393, 628691), (399, 619237), (489, 505267), (551, 448413), (609, 405707), (917, 269439), (1141, 216543), (1653, 149471), (2489, 99267), (2751, 89813), (3097, 79779), (3423, 72181), (3799, 65037), (3857, 64059), (4727, 52269), (7467, 33089), (9291, 26593), (11397, 21679), (11571, 21353), (14181, 17423)]