221388356

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{192847}}^1$

素因数の和:192899

約数の個数: 24

約数和(自身を含む): 453578496

約数和(自身を除く): 232190140

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 192847, 385694, 771388, 1349929, 2699858, 5399716, 7906727, 15813454, 31626908, 55347089, 110694178, 221388356]

約数ペア:

[(1, 221388356), (2, 110694178), (4, 55347089), (7, 31626908), (14, 15813454), (28, 7906727), (41, 5399716), (82, 2699858), (164, 1349929), (287, 771388), (574, 385694), (1148, 192847)]