20453732

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{383}}^1$

素因数の和:492

約数の個数: 36

約数和(自身を含む): 39352320

約数和(自身を除く): 18898588

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 169, 316, 338, 383, 676, 766, 1027, 1532, 2054, 4108, 4979, 9958, 13351, 19916, 26702, 30257, 53404, 60514, 64727, 121028, 129454, 258908, 393341, 786682, 1573364, 5113433, 10226866, 20453732]

約数ペア:

[(1, 20453732), (2, 10226866), (4, 5113433), (13, 1573364), (26, 786682), (52, 393341), (79, 258908), (158, 129454), (169, 121028), (316, 64727), (338, 60514), (383, 53404), (676, 30257), (766, 26702), (1027, 19916), (1532, 13351), (2054, 9958), (4108, 4979)]