21027376

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{263}}^2$

素因数の和:553

約数の個数: 30

約数和(自身を含む): 43048460

約数和(自身を除く): 22021084

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 263, 304, 526, 1052, 2104, 4208, 4997, 9994, 19988, 39976, 69169, 79952, 138338, 276676, 553352, 1106704, 1314211, 2628422, 5256844, 10513688, 21027376]

約数ペア:

[(1, 21027376), (2, 10513688), (4, 5256844), (8, 2628422), (16, 1314211), (19, 1106704), (38, 553352), (76, 276676), (152, 138338), (263, 79952), (304, 69169), (526, 39976), (1052, 19988), (2104, 9994), (4208, 4997)]