21693483

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 37402560

約数和(自身を除く): 15709077

約数列:

[1, 3, 7, 9, 21, 53, 63, 73, 89, 159, 219, 267, 371, 477, 511, 623, 657, 801, 1113, 1533, 1869, 3339, 3869, 4599, 4717, 5607, 6497, 11607, 14151, 19491, 27083, 33019, 34821, 42453, 45479, 58473, 81249, 99057, 136437, 243747, 297171, 344341, 409311, 1033023, 2410387, 3099069, 7231161, 21693483]

約数ペア:

[(1, 21693483), (3, 7231161), (7, 3099069), (9, 2410387), (21, 1033023), (53, 409311), (63, 344341), (73, 297171), (89, 243747), (159, 136437), (219, 99057), (267, 81249), (371, 58473), (477, 45479), (511, 42453), (623, 34821), (657, 33019), (801, 27083), (1113, 19491), (1533, 14151), (1869, 11607), (3339, 6497), (3869, 5607), (4599, 4717)]