20521102

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:245

約数の個数: 48

約数和(自身を含む): 38413440

約数和(自身を除く): 17892338

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 103, 107, 133, 206, 214, 266, 721, 749, 931, 1442, 1498, 1862, 1957, 2033, 3914, 4066, 5047, 5243, 10094, 10486, 11021, 13699, 14231, 22042, 27398, 28462, 77147, 95893, 99617, 154294, 191786, 199234, 209399, 418798, 540029, 1080058, 1465793, 2931586, 10260551, 20521102]

約数ペア:

[(1, 20521102), (2, 10260551), (7, 2931586), (14, 1465793), (19, 1080058), (38, 540029), (49, 418798), (98, 209399), (103, 199234), (107, 191786), (133, 154294), (206, 99617), (214, 95893), (266, 77147), (721, 28462), (749, 27398), (931, 22042), (1442, 14231), (1498, 13699), (1862, 11021), (1957, 10486), (2033, 10094), (3914, 5243), (4066, 5047)]