21238156772

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2459}}^1\times {\mathrm{6563}}^1$

素因数の和:9080

約数の個数: 48

約数和(自身を含む): 43404318720

約数和(自身を除く): 22166161948

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 2459, 4918, 6563, 9836, 13126, 17213, 26252, 34426, 45941, 68852, 91882, 115573, 183764, 231146, 308461, 462292, 616922, 809011, 1233844, 1618022, 2159227, 3236044, 4318454, 8636908, 16138417, 32276834, 64553668, 112968919, 225937838, 451875676, 758505599, 1517011198, 3034022396, 5309539193, 10619078386, 21238156772]

約数ペア:

[(1, 21238156772), (2, 10619078386), (4, 5309539193), (7, 3034022396), (14, 1517011198), (28, 758505599), (47, 451875676), (94, 225937838), (188, 112968919), (329, 64553668), (658, 32276834), (1316, 16138417), (2459, 8636908), (4918, 4318454), (6563, 3236044), (9836, 2159227), (13126, 1618022), (17213, 1233844), (26252, 809011), (34426, 616922), (45941, 462292), (68852, 308461), (91882, 231146), (115573, 183764)]