21095487

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19697}}^1$

素因数の和:19727

約数の個数: 24

約数和(自身を含む): 36874656

約数和(自身を除く): 15779169

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 19697, 59091, 137879, 177273, 334849, 413637, 1004547, 1240911, 2343943, 3013641, 7031829, 21095487]

約数ペア:

[(1, 21095487), (3, 7031829), (7, 3013641), (9, 2343943), (17, 1240911), (21, 1004547), (51, 413637), (63, 334849), (119, 177273), (153, 137879), (357, 59091), (1071, 19697)]