21111892

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{4253}}^1$

素因数の和:4347

約数の個数: 24

約数和(自身を含む): 39664296

約数和(自身を除く): 18552404

約数列:

[1, 2, 4, 17, 34, 68, 73, 146, 292, 1241, 2482, 4253, 4964, 8506, 17012, 72301, 144602, 289204, 310469, 620938, 1241876, 5277973, 10555946, 21111892]

約数ペア:

[(1, 21111892), (2, 10555946), (4, 5277973), (17, 1241876), (34, 620938), (68, 310469), (73, 289204), (146, 144602), (292, 72301), (1241, 17012), (2482, 8506), (4253, 4964)]