20506898601

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{277499}}^1$

素因数の和:277555

約数の個数: 64

約数和(自身を含む): 38361600000

約数和(自身を除く): 17854701399

約数列:

[1, 3, 7, 9, 17, 21, 23, 27, 51, 63, 69, 119, 153, 161, 189, 207, 357, 391, 459, 483, 621, 1071, 1173, 1449, 2737, 3213, 3519, 4347, 8211, 10557, 24633, 73899, 277499, 832497, 1942493, 2497491, 4717483, 5827479, 6382477, 7492473, 14152449, 17482437, 19147431, 33022381, 42457347, 44677339, 52447311, 57442293, 99067143, 108502109, 127372041, 134032017, 172326879, 297201429, 325506327, 402096051, 759514763, 891604287, 976518981, 1206288153, 2278544289, 2929556943, 6835632867, 20506898601]

約数ペア:

[(1, 20506898601), (3, 6835632867), (7, 2929556943), (9, 2278544289), (17, 1206288153), (21, 976518981), (23, 891604287), (27, 759514763), (51, 402096051), (63, 325506327), (69, 297201429), (119, 172326879), (153, 134032017), (161, 127372041), (189, 108502109), (207, 99067143), (357, 57442293), (391, 52447311), (459, 44677339), (483, 42457347), (621, 33022381), (1071, 19147431), (1173, 17482437), (1449, 14152449), (2737, 7492473), (3213, 6382477), (3519, 5827479), (4347, 4717483), (8211, 2497491), (10557, 1942493), (24633, 832497), (73899, 277499)]