21193708

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{2551}}^1$

素因数の和:2653

約数の個数: 24

約数和(自身を含む): 38872064

約数和(自身を除く): 17678356

約数列:

[1, 2, 4, 31, 62, 67, 124, 134, 268, 2077, 2551, 4154, 5102, 8308, 10204, 79081, 158162, 170917, 316324, 341834, 683668, 5298427, 10596854, 21193708]

約数ペア:

[(1, 21193708), (2, 10596854), (4, 5298427), (31, 683668), (62, 341834), (67, 316324), (124, 170917), (134, 158162), (268, 79081), (2077, 10204), (2551, 8308), (4154, 5102)]