21197426

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1\times {\mathrm{1109}}^1$

素因数の和:1633

約数の個数: 16

約数和(自身を含む): 33566400

約数和(自身を除く): 12368974

約数列:

[1, 2, 19, 38, 503, 1006, 1109, 2218, 9557, 19114, 21071, 42142, 557827, 1115654, 10598713, 21197426]

約数ペア:

[(1, 21197426), (2, 10598713), (19, 1115654), (38, 557827), (503, 42142), (1006, 21071), (1109, 19114), (2218, 9557)]