20661028

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{433}}^1$

素因数の和:667

約数の個数: 24

約数和(自身を含む): 36942080

約数和(自身を除く): 16281052

約数列:

[1, 2, 4, 79, 151, 158, 302, 316, 433, 604, 866, 1732, 11929, 23858, 34207, 47716, 65383, 68414, 130766, 136828, 261532, 5165257, 10330514, 20661028]

約数ペア:

[(1, 20661028), (2, 10330514), (4, 5165257), (79, 261532), (151, 136828), (158, 130766), (302, 68414), (316, 65383), (433, 47716), (604, 34207), (866, 23858), (1732, 11929)]