21119792

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69473}}^1$

素因数の和:69500

約数の個数: 20

約数和(自身を含む): 43073880

約数和(自身を除く): 21954088

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69473, 138946, 277892, 555784, 1111568, 1319987, 2639974, 5279948, 10559896, 21119792]

約数ペア:

[(1, 21119792), (2, 10559896), (4, 5279948), (8, 2639974), (16, 1319987), (19, 1111568), (38, 555784), (76, 277892), (152, 138946), (304, 69473)]