19812429

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1423}}^1$

素因数の和:1466

約数の個数: 48

約数和(自身を含む): 37320192

約数和(自身を除く): 17507763

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 357, 663, 819, 1071, 1423, 1547, 1989, 4269, 4641, 9961, 12807, 13923, 18499, 24191, 29883, 55497, 72573, 89649, 129493, 166491, 169337, 217719, 314483, 388479, 508011, 943449, 1165437, 1524033, 2201381, 2830347, 6604143, 19812429]

約数ペア:

[(1, 19812429), (3, 6604143), (7, 2830347), (9, 2201381), (13, 1524033), (17, 1165437), (21, 943449), (39, 508011), (51, 388479), (63, 314483), (91, 217719), (117, 169337), (119, 166491), (153, 129493), (221, 89649), (273, 72573), (357, 55497), (663, 29883), (819, 24191), (1071, 18499), (1423, 13923), (1547, 12807), (1989, 9961), (4269, 4641)]