21978858

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1031}}^1$

素因数の和:1083

約数の個数: 64

約数和(自身を含む): 53498880

約数和(自身を除く): 31520022

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, 1031, 1122, 1254, 1938, 2062, 3093, 3553, 6186, 7106, 10659, 11341, 17527, 19589, 21318, 22682, 34023, 35054, 39178, 52581, 58767, 68046, 105162, 117534, 192797, 215479, 333013, 385594, 430958, 578391, 646437, 666026, 999039, 1156782, 1292874, 1998078, 3663143, 7326286, 10989429, 21978858]

約数ペア:

[(1, 21978858), (2, 10989429), (3, 7326286), (6, 3663143), (11, 1998078), (17, 1292874), (19, 1156782), (22, 999039), (33, 666026), (34, 646437), (38, 578391), (51, 430958), (57, 385594), (66, 333013), (102, 215479), (114, 192797), (187, 117534), (209, 105162), (323, 68046), (374, 58767), (418, 52581), (561, 39178), (627, 35054), (646, 34023), (969, 22682), (1031, 21318), (1122, 19589), (1254, 17527), (1938, 11341), (2062, 10659), (3093, 7106), (3553, 6186)]