19727395

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 26593920

約数和(自身を除く): 6866525

約数列:

[1, 5, 17, 29, 53, 85, 145, 151, 265, 493, 755, 901, 1537, 2465, 2567, 4379, 4505, 7685, 8003, 12835, 21895, 26129, 40015, 74443, 130645, 136051, 232087, 372215, 680255, 1160435, 3945479, 19727395]

約数ペア:

[(1, 19727395), (5, 3945479), (17, 1160435), (29, 680255), (53, 372215), (85, 232087), (145, 136051), (151, 130645), (265, 74443), (493, 40015), (755, 26129), (901, 21895), (1537, 12835), (2465, 8003), (2567, 7685), (4379, 4505)]