20526028

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{47}}^2\times {\mathrm{101}}^1$

素因数の和:222

約数の個数: 36

約数和(自身を含む): 38675952

約数和(自身を除く): 18149924

約数列:

[1, 2, 4, 23, 46, 47, 92, 94, 101, 188, 202, 404, 1081, 2162, 2209, 2323, 4324, 4418, 4646, 4747, 8836, 9292, 9494, 18988, 50807, 101614, 109181, 203228, 218362, 223109, 436724, 446218, 892436, 5131507, 10263014, 20526028]

約数ペア:

[(1, 20526028), (2, 10263014), (4, 5131507), (23, 892436), (46, 446218), (47, 436724), (92, 223109), (94, 218362), (101, 203228), (188, 109181), (202, 101614), (404, 50807), (1081, 18988), (2162, 9494), (2209, 9292), (2323, 8836), (4324, 4747), (4418, 4646)]