21513654

素因数分解:

$2^1\times 3^3\times {\mathrm{53}}^1\times {\mathrm{7517}}^1$

素因数の和:7581

約数の個数: 32

約数和(自身を含む): 48716640

約数和(自身を除く): 27202986

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 106, 159, 318, 477, 954, 1431, 2862, 7517, 15034, 22551, 45102, 67653, 135306, 202959, 398401, 405918, 796802, 1195203, 2390406, 3585609, 7171218, 10756827, 21513654]

約数ペア:

[(1, 21513654), (2, 10756827), (3, 7171218), (6, 3585609), (9, 2390406), (18, 1195203), (27, 796802), (53, 405918), (54, 398401), (106, 202959), (159, 135306), (318, 67653), (477, 45102), (954, 22551), (1431, 15034), (2862, 7517)]