20955594

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{983}}^1$

素因数の和:1035

約数の個数: 64

約数和(自身を含む): 51010560

約数和(自身を除く): 30054966

約数列:

[1, 2, 3, 6, 11, 17, 19, 22, 33, 34, 38, 51, 57, 66, 102, 114, 187, 209, 323, 374, 418, 561, 627, 646, 969, 983, 1122, 1254, 1938, 1966, 2949, 3553, 5898, 7106, 10659, 10813, 16711, 18677, 21318, 21626, 32439, 33422, 37354, 50133, 56031, 64878, 100266, 112062, 183821, 205447, 317509, 367642, 410894, 551463, 616341, 635018, 952527, 1102926, 1232682, 1905054, 3492599, 6985198, 10477797, 20955594]

約数ペア:

[(1, 20955594), (2, 10477797), (3, 6985198), (6, 3492599), (11, 1905054), (17, 1232682), (19, 1102926), (22, 952527), (33, 635018), (34, 616341), (38, 551463), (51, 410894), (57, 367642), (66, 317509), (102, 205447), (114, 183821), (187, 112062), (209, 100266), (323, 64878), (374, 56031), (418, 50133), (561, 37354), (627, 33422), (646, 32439), (969, 21626), (983, 21318), (1122, 18677), (1254, 16711), (1938, 10813), (1966, 10659), (2949, 7106), (3553, 5898)]