19781900534

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{8249333}}^1$

素因数の和:8249455

約数の個数: 16

約数和(自身を含む): 32667362640

約数和(自身を除く): 12885462106

約数列:

[1, 2, 11, 22, 109, 218, 1199, 2398, 8249333, 16498666, 90742663, 181485326, 899177297, 1798354594, 9890950267, 19781900534]

約数ペア:

[(1, 19781900534), (2, 9890950267), (11, 1798354594), (22, 899177297), (109, 181485326), (218, 90742663), (1199, 16498666), (2398, 8249333)]