681271844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{809}}^1\times {\mathrm{19139}}^1$

素因数の和:19963

約数の個数: 24

約数和(自身を含む): 1302285600

約数和(自身を除く): 621013756

約数列:

[1, 2, 4, 11, 22, 44, 809, 1618, 3236, 8899, 17798, 19139, 35596, 38278, 76556, 210529, 421058, 842116, 15483451, 30966902, 61933804, 170317961, 340635922, 681271844]

約数ペア:

[(1, 681271844), (2, 340635922), (4, 170317961), (11, 61933804), (22, 30966902), (44, 15483451), (809, 842116), (1618, 421058), (3236, 210529), (8899, 76556), (17798, 38278), (19139, 35596)]