21186064

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69691}}^1$

素因数の和:69718

約数の個数: 20

約数和(自身を含む): 43209040

約数和(自身を除く): 22022976

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69691, 139382, 278764, 557528, 1115056, 1324129, 2648258, 5296516, 10593032, 21186064]

約数ペア:

[(1, 21186064), (2, 10593032), (4, 5296516), (8, 2648258), (16, 1324129), (19, 1115056), (38, 557528), (76, 278764), (152, 139382), (304, 69691)]