19421667

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:193

約数の個数: 48

約数和(自身を含む): 32419200

約数和(自身を除く): 12997533

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 131, 153, 171, 289, 323, 393, 459, 513, 867, 969, 1179, 2227, 2489, 2601, 2907, 3537, 5491, 6681, 7467, 7803, 8721, 16473, 20043, 22401, 37859, 42313, 49419, 60129, 67203, 113577, 126939, 148257, 340731, 380817, 719321, 1022193, 1142451, 2157963, 6473889, 19421667]

約数ペア:

[(1, 19421667), (3, 6473889), (9, 2157963), (17, 1142451), (19, 1022193), (27, 719321), (51, 380817), (57, 340731), (131, 148257), (153, 126939), (171, 113577), (289, 67203), (323, 60129), (393, 49419), (459, 42313), (513, 37859), (867, 22401), (969, 20043), (1179, 16473), (2227, 8721), (2489, 7803), (2601, 7467), (2907, 6681), (3537, 5491)]