20996912139

素因数分解:

$3^1\times 7^2\times {\mathrm{739}}^1\times {\mathrm{193283}}^1$

素因数の和:194039

約数の個数: 24

約数和(自身を含む): 32610876480

約数和(自身を除く): 11613964341

約数列:

[1, 3, 7, 21, 49, 147, 739, 2217, 5173, 15519, 36211, 108633, 193283, 579849, 1352981, 4058943, 9470867, 28412601, 142836137, 428508411, 999852959, 2999558877, 6998970713, 20996912139]

約数ペア:

[(1, 20996912139), (3, 6998970713), (7, 2999558877), (21, 999852959), (49, 428508411), (147, 142836137), (739, 28412601), (2217, 9470867), (5173, 4058943), (15519, 1352981), (36211, 579849), (108633, 193283)]