221497388

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{149257}}^1$

素因数の和:149321

約数の個数: 24

約数和(自身を含む): 451356192

約数和(自身を除く): 229858804

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 149257, 298514, 597028, 1044799, 2089598, 4179196, 7910621, 15821242, 31642484, 55374347, 110748694, 221497388]

約数ペア:

[(1, 221497388), (2, 110748694), (4, 55374347), (7, 31642484), (14, 15821242), (28, 7910621), (53, 4179196), (106, 2089598), (212, 1044799), (371, 597028), (742, 298514), (1484, 149257)]