21290342

素因数分解:

$2^1\times {\mathrm{47}}^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:236

約数の個数: 24

約数和(自身を含む): 33584160

約数和(自身を除く): 12293818

約数列:

[1, 2, 47, 61, 79, 94, 122, 158, 2209, 2867, 3713, 4418, 4819, 5734, 7426, 9638, 134749, 174511, 226493, 269498, 349022, 452986, 10645171, 21290342]

約数ペア:

[(1, 21290342), (2, 10645171), (47, 452986), (61, 349022), (79, 269498), (94, 226493), (122, 174511), (158, 134749), (2209, 9638), (2867, 7426), (3713, 5734), (4418, 4819)]