21277788

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{253307}}^1$

素因数の和:253321

約数の個数: 24

約数和(自身を含む): 56740992

約数和(自身を除く): 35463204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 253307, 506614, 759921, 1013228, 1519842, 1773149, 3039684, 3546298, 5319447, 7092596, 10638894, 21277788]

約数ペア:

[(1, 21277788), (2, 10638894), (3, 7092596), (4, 5319447), (6, 3546298), (7, 3039684), (12, 1773149), (14, 1519842), (21, 1013228), (28, 759921), (42, 506614), (84, 253307)]