21966357

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 36443520

約数和(自身を除く): 14477163

約数列:

[1, 3, 7, 21, 23, 49, 69, 73, 89, 147, 161, 219, 267, 483, 511, 623, 1127, 1533, 1679, 1869, 2047, 3381, 3577, 4361, 5037, 6141, 6497, 10731, 11753, 13083, 14329, 19491, 35259, 42987, 45479, 82271, 100303, 136437, 149431, 246813, 300909, 318353, 448293, 955059, 1046017, 3138051, 7322119, 21966357]

約数ペア:

[(1, 21966357), (3, 7322119), (7, 3138051), (21, 1046017), (23, 955059), (49, 448293), (69, 318353), (73, 300909), (89, 246813), (147, 149431), (161, 136437), (219, 100303), (267, 82271), (483, 45479), (511, 42987), (623, 35259), (1127, 19491), (1533, 14329), (1679, 13083), (1869, 11753), (2047, 10731), (3381, 6497), (3577, 6141), (4361, 5037)]