18992457

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 32947200

約数和(自身を除く): 13954743

約数列:

[1, 3, 9, 11, 19, 23, 33, 57, 69, 99, 171, 207, 209, 253, 437, 439, 627, 759, 1311, 1317, 1881, 2277, 3933, 3951, 4807, 4829, 8341, 10097, 14421, 14487, 25023, 30291, 43263, 43461, 75069, 90873, 91751, 111067, 191843, 275253, 333201, 575529, 825759, 999603, 1726587, 2110273, 6330819, 18992457]

約数ペア:

[(1, 18992457), (3, 6330819), (9, 2110273), (11, 1726587), (19, 999603), (23, 825759), (33, 575529), (57, 333201), (69, 275253), (99, 191843), (171, 111067), (207, 91751), (209, 90873), (253, 75069), (437, 43461), (439, 43263), (627, 30291), (759, 25023), (1311, 14487), (1317, 14421), (1881, 10097), (2277, 8341), (3933, 4829), (3951, 4807)]