81370179

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 136281600

約数和(自身を除く): 54911421

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 181, 209, 239, 543, 627, 717, 1629, 1881, 1991, 2151, 2629, 3439, 4541, 5973, 7887, 10317, 13623, 17919, 23661, 30951, 37829, 40869, 43259, 49951, 113487, 129777, 149853, 340461, 389331, 449559, 475849, 821921, 1427547, 2465763, 4282641, 7397289, 9041131, 27123393, 81370179]

約数ペア:

[(1, 81370179), (3, 27123393), (9, 9041131), (11, 7397289), (19, 4282641), (33, 2465763), (57, 1427547), (99, 821921), (171, 475849), (181, 449559), (209, 389331), (239, 340461), (543, 149853), (627, 129777), (717, 113487), (1629, 49951), (1881, 43259), (1991, 40869), (2151, 37829), (2629, 30951), (3439, 23661), (4541, 17919), (5973, 13623), (7887, 10317)]