18010917

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 29352960

約数和(自身を除く): 11342043

約数列:

[1, 3, 9, 19, 27, 47, 57, 81, 83, 141, 171, 243, 249, 423, 513, 747, 893, 1269, 1539, 1577, 2241, 2679, 3807, 3901, 4617, 4731, 6723, 8037, 11421, 11703, 14193, 20169, 24111, 35109, 42579, 72333, 74119, 105327, 127737, 216999, 222357, 315981, 383211, 667071, 947943, 2001213, 6003639, 18010917]

約数ペア:

[(1, 18010917), (3, 6003639), (9, 2001213), (19, 947943), (27, 667071), (47, 383211), (57, 315981), (81, 222357), (83, 216999), (141, 127737), (171, 105327), (243, 74119), (249, 72333), (423, 42579), (513, 35109), (747, 24111), (893, 20169), (1269, 14193), (1539, 11703), (1577, 11421), (2241, 8037), (2679, 6723), (3807, 4731), (3901, 4617)]