21492328

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18787}}^1$

素因数の和:18817

約数の個数: 32

約数和(自身を含む): 47345760

約数和(自身を除く): 25853432

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18787, 37574, 75148, 150296, 206657, 244231, 413314, 488462, 826628, 976924, 1653256, 1953848, 2686541, 5373082, 10746164, 21492328]

約数ペア:

[(1, 21492328), (2, 10746164), (4, 5373082), (8, 2686541), (11, 1953848), (13, 1653256), (22, 976924), (26, 826628), (44, 488462), (52, 413314), (88, 244231), (104, 206657), (143, 150296), (286, 75148), (572, 37574), (1144, 18787)]