21218508

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{19013}}^1$

素因数の和:19054

約数の個数: 36

約数和(自身を含む): 55368768

約数和(自身を除く): 34150260

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 558, 1116, 19013, 38026, 57039, 76052, 114078, 171117, 228156, 342234, 589403, 684468, 1178806, 1768209, 2357612, 3536418, 5304627, 7072836, 10609254, 21218508]

約数ペア:

[(1, 21218508), (2, 10609254), (3, 7072836), (4, 5304627), (6, 3536418), (9, 2357612), (12, 1768209), (18, 1178806), (31, 684468), (36, 589403), (62, 342234), (93, 228156), (124, 171117), (186, 114078), (279, 76052), (372, 57039), (558, 38026), (1116, 19013)]