21042758

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{569}}^1$

素因数の和:664

約数の個数: 24

約数和(自身を含む): 35355960

約数和(自身を除く): 14313202

約数列:

[1, 2, 11, 22, 41, 82, 451, 569, 902, 1138, 1681, 3362, 6259, 12518, 18491, 23329, 36982, 46658, 256619, 513238, 956489, 1912978, 10521379, 21042758]

約数ペア:

[(1, 21042758), (2, 10521379), (11, 1912978), (22, 956489), (41, 513238), (82, 256619), (451, 46658), (569, 36982), (902, 23329), (1138, 18491), (1681, 12518), (3362, 6259)]