21491812

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{4793}}^1$

素因数の和:4875

約数の個数: 24

約数和(自身を含む): 40269600

約数和(自身を除く): 18777788

約数列:

[1, 2, 4, 19, 38, 59, 76, 118, 236, 1121, 2242, 4484, 4793, 9586, 19172, 91067, 182134, 282787, 364268, 565574, 1131148, 5372953, 10745906, 21491812]

約数ペア:

[(1, 21491812), (2, 10745906), (4, 5372953), (19, 1131148), (38, 565574), (59, 364268), (76, 282787), (118, 182134), (236, 91067), (1121, 19172), (2242, 9586), (4484, 4793)]