21438248

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1483}}^1$

素因数の和:1641

約数の個数: 32

約数和(自身を含む): 43629600

約数和(自身を除く): 22191352

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 139, 278, 556, 1112, 1483, 1807, 2966, 3614, 5932, 7228, 11864, 14456, 19279, 38558, 77116, 154232, 206137, 412274, 824548, 1649096, 2679781, 5359562, 10719124, 21438248]

約数ペア:

[(1, 21438248), (2, 10719124), (4, 5359562), (8, 2679781), (13, 1649096), (26, 824548), (52, 412274), (104, 206137), (139, 154232), (278, 77116), (556, 38558), (1112, 19279), (1483, 14456), (1807, 11864), (2966, 7228), (3614, 5932)]