19750479

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 32749920

約数和(自身を除く): 12999441

約数列:

[1, 3, 7, 21, 29, 41, 49, 87, 113, 123, 147, 203, 287, 339, 609, 791, 861, 1189, 1421, 2009, 2373, 3277, 3567, 4263, 4633, 5537, 6027, 8323, 9831, 13899, 16611, 22939, 24969, 32431, 58261, 68817, 97293, 134357, 160573, 174783, 227017, 403071, 481719, 681051, 940499, 2821497, 6583493, 19750479]

約数ペア:

[(1, 19750479), (3, 6583493), (7, 2821497), (21, 940499), (29, 681051), (41, 481719), (49, 403071), (87, 227017), (113, 174783), (123, 160573), (147, 134357), (203, 97293), (287, 68817), (339, 58261), (609, 32431), (791, 24969), (861, 22939), (1189, 16611), (1421, 13899), (2009, 9831), (2373, 8323), (3277, 6027), (3567, 5537), (4263, 4633)]