19898889218

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{20389}}^1\times {\mathrm{37537}}^1$

素因数の和:57941

約数の個数: 16

約数和(自身を含む): 32146792440

約数和(自身を除く): 12247903222

約数列:

[1, 2, 13, 26, 20389, 37537, 40778, 75074, 265057, 487981, 530114, 975962, 765341893, 1530683786, 9949444609, 19898889218]

約数ペア:

[(1, 19898889218), (2, 9949444609), (13, 1530683786), (26, 765341893), (20389, 975962), (37537, 530114), (40778, 487981), (75074, 265057)]