18961204

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 33821480

約数和(自身を除く): 14860276

約数列:

[1, 2, 4, 109, 157, 218, 277, 314, 436, 554, 628, 1108, 17113, 30193, 34226, 43489, 60386, 68452, 86978, 120772, 173956, 4740301, 9480602, 18961204]

約数ペア:

[(1, 18961204), (2, 9480602), (4, 4740301), (109, 173956), (157, 120772), (218, 86978), (277, 68452), (314, 60386), (436, 43489), (554, 34226), (628, 30193), (1108, 17113)]