221570290

素因数分解:

$2^1\times 5^1\times {\mathrm{1427}}^1\times {\mathrm{15527}}^1$

素因数の和:16961

約数の個数: 16

約数和(自身を含む): 399131712

約数和(自身を除く): 177561422

約数列:

[1, 2, 5, 10, 1427, 2854, 7135, 14270, 15527, 31054, 77635, 155270, 22157029, 44314058, 110785145, 221570290]

約数ペア:

[(1, 221570290), (2, 110785145), (5, 44314058), (10, 22157029), (1427, 155270), (2854, 77635), (7135, 31054), (14270, 15527)]