21350890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{2897}}^1$

素因数の和:2982

約数の個数: 32

約数和(自身を含む): 42565824

約数和(自身を除く): 21214934

約数列:

[1, 2, 5, 10, 11, 22, 55, 67, 110, 134, 335, 670, 737, 1474, 2897, 3685, 5794, 7370, 14485, 28970, 31867, 63734, 159335, 194099, 318670, 388198, 970495, 1940990, 2135089, 4270178, 10675445, 21350890]

約数ペア:

[(1, 21350890), (2, 10675445), (5, 4270178), (10, 2135089), (11, 1940990), (22, 970495), (55, 388198), (67, 318670), (110, 194099), (134, 159335), (335, 63734), (670, 31867), (737, 28970), (1474, 14485), (2897, 7370), (3685, 5794)]