19737081

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 37363200

約数和(自身を除く): 17626119

約数列:

[1, 3, 7, 9, 13, 21, 27, 29, 39, 63, 87, 91, 117, 189, 203, 261, 273, 277, 351, 377, 609, 783, 819, 831, 1131, 1827, 1939, 2457, 2493, 2639, 3393, 3601, 5481, 5817, 7479, 7917, 8033, 10179, 10803, 17451, 23751, 24099, 25207, 32409, 52353, 56231, 71253, 72297, 75621, 97227, 104429, 168693, 216891, 226863, 313287, 506079, 680589, 731003, 939861, 1518237, 2193009, 2819583, 6579027, 19737081]

約数ペア:

[(1, 19737081), (3, 6579027), (7, 2819583), (9, 2193009), (13, 1518237), (21, 939861), (27, 731003), (29, 680589), (39, 506079), (63, 313287), (87, 226863), (91, 216891), (117, 168693), (189, 104429), (203, 97227), (261, 75621), (273, 72297), (277, 71253), (351, 56231), (377, 52353), (609, 32409), (783, 25207), (819, 24099), (831, 23751), (1131, 17451), (1827, 10803), (1939, 10179), (2457, 8033), (2493, 7917), (2639, 7479), (3393, 5817), (3601, 5481)]