21920612

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{16657}}^1$

素因数の和:16715

約数の個数: 24

約数和(自身を含む): 44776704

約数和(自身を除く): 22856092

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 16657, 33314, 66628, 116599, 233198, 466396, 782879, 1565758, 3131516, 5480153, 10960306, 21920612]

約数ペア:

[(1, 21920612), (2, 10960306), (4, 5480153), (7, 3131516), (14, 1565758), (28, 782879), (47, 466396), (94, 233198), (188, 116599), (329, 66628), (658, 33314), (1316, 16657)]