861697921

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 1143078912

約数和(自身を除く): 281380991

約数列:

[1, 7, 17, 23, 37, 67, 119, 127, 161, 259, 391, 469, 629, 851, 889, 1139, 1541, 2159, 2479, 2737, 2921, 4403, 4699, 5957, 7973, 8509, 10787, 14467, 15113, 17353, 20447, 26197, 32893, 42143, 49657, 57017, 59563, 79883, 101269, 108077, 144653, 183379, 195707, 295001, 314833, 347599, 399119, 559181, 756539, 969289, 1012571, 1369949, 1837309, 2203831, 3327019, 5352161, 6785023, 7241159, 12861163, 23289133, 37465127, 50688113, 123099703, 861697921]

約数ペア:

[(1, 861697921), (7, 123099703), (17, 50688113), (23, 37465127), (37, 23289133), (67, 12861163), (119, 7241159), (127, 6785023), (161, 5352161), (259, 3327019), (391, 2203831), (469, 1837309), (629, 1369949), (851, 1012571), (889, 969289), (1139, 756539), (1541, 559181), (2159, 399119), (2479, 347599), (2737, 314833), (2921, 295001), (4403, 195707), (4699, 183379), (5957, 144653), (7973, 108077), (8509, 101269), (10787, 79883), (14467, 59563), (15113, 57017), (17353, 49657), (20447, 42143), (26197, 32893)]