21541360

素因数分解:

$2^4\times 5^1\times {\mathrm{293}}^1\times {\mathrm{919}}^1$

素因数の和:1225

約数の個数: 40

約数和(自身を含む): 50309280

約数和(自身を除く): 28767920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 293, 586, 919, 1172, 1465, 1838, 2344, 2930, 3676, 4595, 4688, 5860, 7352, 9190, 11720, 14704, 18380, 23440, 36760, 73520, 269267, 538534, 1077068, 1346335, 2154136, 2692670, 4308272, 5385340, 10770680, 21541360]

約数ペア:

[(1, 21541360), (2, 10770680), (4, 5385340), (5, 4308272), (8, 2692670), (10, 2154136), (16, 1346335), (20, 1077068), (40, 538534), (80, 269267), (293, 73520), (586, 36760), (919, 23440), (1172, 18380), (1465, 14704), (1838, 11720), (2344, 9190), (2930, 7352), (3676, 5860), (4595, 4688)]