81272191

素因数分解:

$7^1\times {\mathrm{11}}^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1$

素因数の和:125

約数の個数: 40

約数和(自身を含む): 111833120

約数和(自身を除く): 30560929

約数列:

[1, 7, 11, 13, 61, 77, 91, 121, 143, 427, 671, 793, 847, 1001, 1331, 1573, 4697, 5551, 7381, 8723, 9317, 11011, 14641, 17303, 51667, 61061, 81191, 95953, 102487, 121121, 190333, 568337, 671671, 893101, 1055483, 1332331, 6251707, 7388381, 11610313, 81272191]

約数ペア:

[(1, 81272191), (7, 11610313), (11, 7388381), (13, 6251707), (61, 1332331), (77, 1055483), (91, 893101), (121, 671671), (143, 568337), (427, 190333), (671, 121121), (793, 102487), (847, 95953), (1001, 81191), (1331, 61061), (1573, 51667), (4697, 17303), (5551, 14641), (7381, 11011), (8723, 9317)]