21751636

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{173}}^1$

素因数の和:280

約数の個数: 36

約数和(自身を含む): 41502132

約数和(自身を除く): 19750496

約数列:

[1, 2, 4, 17, 34, 43, 68, 86, 172, 173, 346, 692, 731, 1462, 1849, 2924, 2941, 3698, 5882, 7396, 7439, 11764, 14878, 29756, 31433, 62866, 125732, 126463, 252926, 319877, 505852, 639754, 1279508, 5437909, 10875818, 21751636]

約数ペア:

[(1, 21751636), (2, 10875818), (4, 5437909), (17, 1279508), (34, 639754), (43, 505852), (68, 319877), (86, 252926), (172, 126463), (173, 125732), (346, 62866), (692, 31433), (731, 29756), (1462, 14878), (1849, 11764), (2924, 7439), (2941, 7396), (3698, 5882)]