20355069

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 35721216

約数和(自身を除く): 15366147

約数列:

[1, 3, 7, 17, 21, 23, 37, 51, 67, 69, 111, 119, 161, 201, 259, 357, 391, 469, 483, 629, 777, 851, 1139, 1173, 1407, 1541, 1887, 2479, 2553, 2737, 3417, 4403, 4623, 5957, 7437, 7973, 8211, 10787, 13209, 14467, 17353, 17871, 23919, 26197, 32361, 42143, 43401, 52059, 57017, 78591, 101269, 126429, 171051, 183379, 295001, 303807, 399119, 550137, 885003, 969289, 1197357, 2907867, 6785023, 20355069]

約数ペア:

[(1, 20355069), (3, 6785023), (7, 2907867), (17, 1197357), (21, 969289), (23, 885003), (37, 550137), (51, 399119), (67, 303807), (69, 295001), (111, 183379), (119, 171051), (161, 126429), (201, 101269), (259, 78591), (357, 57017), (391, 52059), (469, 43401), (483, 42143), (629, 32361), (777, 26197), (851, 23919), (1139, 17871), (1173, 17353), (1407, 14467), (1541, 13209), (1887, 10787), (2479, 8211), (2553, 7973), (2737, 7437), (3417, 5957), (4403, 4623)]