16905231

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 30451200

約数和(自身を除く): 13545969

約数列:

[1, 3, 7, 9, 19, 21, 29, 57, 63, 87, 133, 171, 203, 261, 399, 487, 551, 609, 1197, 1461, 1653, 1827, 3409, 3857, 4383, 4959, 9253, 10227, 11571, 14123, 27759, 30681, 34713, 42369, 64771, 83277, 98861, 127107, 194313, 268337, 296583, 582939, 805011, 889749, 1878359, 2415033, 5635077, 16905231]

約数ペア:

[(1, 16905231), (3, 5635077), (7, 2415033), (9, 1878359), (19, 889749), (21, 805011), (29, 582939), (57, 296583), (63, 268337), (87, 194313), (133, 127107), (171, 98861), (203, 83277), (261, 64771), (399, 42369), (487, 34713), (551, 30681), (609, 27759), (1197, 14123), (1461, 11571), (1653, 10227), (1827, 9253), (3409, 4959), (3857, 4383)]