263249469

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{257}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 444337920

約数和(自身を除く): 181088451

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 229, 257, 497, 639, 687, 771, 1491, 1603, 1799, 2061, 2313, 4473, 4809, 5397, 14427, 16191, 16259, 18247, 48777, 54741, 58853, 113813, 127729, 146331, 164223, 176559, 341439, 383187, 411971, 529677, 1024317, 1149561, 1235913, 3707739, 4178563, 12535689, 29249941, 37607067, 87749823, 263249469]

約数ペア:

[(1, 263249469), (3, 87749823), (7, 37607067), (9, 29249941), (21, 12535689), (63, 4178563), (71, 3707739), (213, 1235913), (229, 1149561), (257, 1024317), (497, 529677), (639, 411971), (687, 383187), (771, 341439), (1491, 176559), (1603, 164223), (1799, 146331), (2061, 127729), (2313, 113813), (4473, 58853), (4809, 54741), (5397, 48777), (14427, 18247), (16191, 16259)]