21591088

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79379}}^1$

素因数の和:79404

約数の個数: 20

約数和(自身を含む): 44294040

約数和(自身を除く): 22702952

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79379, 158758, 317516, 635032, 1270064, 1349443, 2698886, 5397772, 10795544, 21591088]

約数ペア:

[(1, 21591088), (2, 10795544), (4, 5397772), (8, 2698886), (16, 1349443), (17, 1270064), (34, 635032), (68, 317516), (136, 158758), (272, 79379)]