20681752

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28409}}^1$

素因数の和:28435

約数の個数: 32

約数和(自身を含む): 47728800

約数和(自身を除く): 27047048

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28409, 56818, 113636, 198863, 227272, 369317, 397726, 738634, 795452, 1477268, 1590904, 2585219, 2954536, 5170438, 10340876, 20681752]

約数ペア:

[(1, 20681752), (2, 10340876), (4, 5170438), (7, 2954536), (8, 2585219), (13, 1590904), (14, 1477268), (26, 795452), (28, 738634), (52, 397726), (56, 369317), (91, 227272), (104, 198863), (182, 113636), (364, 56818), (728, 28409)]