21489426

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{170551}}^1$

素因数の和:170566

約数の個数: 24

約数和(自身を含む): 53212224

約数和(自身を除く): 31722798

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 170551, 341102, 511653, 1023306, 1193857, 1534959, 2387714, 3069918, 3581571, 7163142, 10744713, 21489426]

約数ペア:

[(1, 21489426), (2, 10744713), (3, 7163142), (6, 3581571), (7, 3069918), (9, 2387714), (14, 1534959), (18, 1193857), (21, 1023306), (42, 511653), (63, 341102), (126, 170551)]