20239856

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13901}}^1$

素因数の和:13929

約数の個数: 40

約数和(自身を含む): 48267744

約数和(自身を除く): 28027888

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 13901, 27802, 55604, 97307, 111208, 180713, 194614, 222416, 361426, 389228, 722852, 778456, 1264991, 1445704, 1556912, 2529982, 2891408, 5059964, 10119928, 20239856]

約数ペア:

[(1, 20239856), (2, 10119928), (4, 5059964), (7, 2891408), (8, 2529982), (13, 1556912), (14, 1445704), (16, 1264991), (26, 778456), (28, 722852), (52, 389228), (56, 361426), (91, 222416), (104, 194614), (112, 180713), (182, 111208), (208, 97307), (364, 55604), (728, 27802), (1456, 13901)]