21797846

素因数分解:

$2^1\times 7^2\times {\mathrm{347}}^1\times {\mathrm{641}}^1$

素因数の和:1004

約数の個数: 24

約数和(自身を含む): 38204136

約数和(自身を除く): 16406290

約数列:

[1, 2, 7, 14, 49, 98, 347, 641, 694, 1282, 2429, 4487, 4858, 8974, 17003, 31409, 34006, 62818, 222427, 444854, 1556989, 3113978, 10898923, 21797846]

約数ペア:

[(1, 21797846), (2, 10898923), (7, 3113978), (14, 1556989), (49, 444854), (98, 222427), (347, 62818), (641, 34006), (694, 31409), (1282, 17003), (2429, 8974), (4487, 4858)]