19983816

素因数分解:

$2^3\times 3^2\times {\mathrm{433}}^1\times {\mathrm{641}}^1$

素因数の和:1086

約数の個数: 48

約数和(自身を含む): 54332460

約数和(自身を除く): 34348644

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 433, 641, 866, 1282, 1299, 1732, 1923, 2564, 2598, 3464, 3846, 3897, 5128, 5196, 5769, 7692, 7794, 10392, 11538, 15384, 15588, 23076, 31176, 46152, 277553, 555106, 832659, 1110212, 1665318, 2220424, 2497977, 3330636, 4995954, 6661272, 9991908, 19983816]

約数ペア:

[(1, 19983816), (2, 9991908), (3, 6661272), (4, 4995954), (6, 3330636), (8, 2497977), (9, 2220424), (12, 1665318), (18, 1110212), (24, 832659), (36, 555106), (72, 277553), (433, 46152), (641, 31176), (866, 23076), (1282, 15588), (1299, 15384), (1732, 11538), (1923, 10392), (2564, 7794), (2598, 7692), (3464, 5769), (3846, 5196), (3897, 5128)]