20149828

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{1153}}^1$

素因数の和:1431

約数の個数: 24

約数和(自身を含む): 37514232

約数和(自身を除く): 17364404

約数列:

[1, 2, 4, 17, 34, 68, 257, 514, 1028, 1153, 2306, 4369, 4612, 8738, 17476, 19601, 39202, 78404, 296321, 592642, 1185284, 5037457, 10074914, 20149828]

約数ペア:

[(1, 20149828), (2, 10074914), (4, 5037457), (17, 1185284), (34, 592642), (68, 296321), (257, 78404), (514, 39202), (1028, 19601), (1153, 17476), (2306, 8738), (4369, 4612)]