21000837798

素因数分解:

$2^1\times 3^2\times {\mathrm{173}}^1\times {\mathrm{6744007}}^1$

素因数の和:6744188

約数の個数: 24

約数和(自身を含む): 45764838288

約数和(自身を除く): 24764000490

約数列:

[1, 2, 3, 6, 9, 18, 173, 346, 519, 1038, 1557, 3114, 6744007, 13488014, 20232021, 40464042, 60696063, 121392126, 1166713211, 2333426422, 3500139633, 7000279266, 10500418899, 21000837798]

約数ペア:

[(1, 21000837798), (2, 10500418899), (3, 7000279266), (6, 3500139633), (9, 2333426422), (18, 1166713211), (173, 121392126), (346, 60696063), (519, 40464042), (1038, 20232021), (1557, 13488014), (3114, 6744007)]