19720188

素因数分解:

$2^2\times 3^2\times {\mathrm{233}}^1\times {\mathrm{2351}}^1$

素因数の和:2594

約数の個数: 36

約数和(自身を含む): 50083488

約数和(自身を除く): 30363300

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 233, 466, 699, 932, 1398, 2097, 2351, 2796, 4194, 4702, 7053, 8388, 9404, 14106, 21159, 28212, 42318, 84636, 547783, 1095566, 1643349, 2191132, 3286698, 4930047, 6573396, 9860094, 19720188]

約数ペア:

[(1, 19720188), (2, 9860094), (3, 6573396), (4, 4930047), (6, 3286698), (9, 2191132), (12, 1643349), (18, 1095566), (36, 547783), (233, 84636), (466, 42318), (699, 28212), (932, 21159), (1398, 14106), (2097, 9404), (2351, 8388), (2796, 7053), (4194, 4702)]