20871996

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1621}}^1$

素因数の和:1694

約数の個数: 48

約数和(自身を含む): 51774240

約数和(自身を除く): 30902244

約数列:

[1, 2, 3, 4, 6, 12, 29, 37, 58, 74, 87, 111, 116, 148, 174, 222, 348, 444, 1073, 1621, 2146, 3219, 3242, 4292, 4863, 6438, 6484, 9726, 12876, 19452, 47009, 59977, 94018, 119954, 141027, 179931, 188036, 239908, 282054, 359862, 564108, 719724, 1739333, 3478666, 5217999, 6957332, 10435998, 20871996]

約数ペア:

[(1, 20871996), (2, 10435998), (3, 6957332), (4, 5217999), (6, 3478666), (12, 1739333), (29, 719724), (37, 564108), (58, 359862), (74, 282054), (87, 239908), (111, 188036), (116, 179931), (148, 141027), (174, 119954), (222, 94018), (348, 59977), (444, 47009), (1073, 19452), (1621, 12876), (2146, 9726), (3219, 6484), (3242, 6438), (4292, 4863)]