21979386

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8539}}^1$

素因数の和:8571

約数の個数: 48

約数和(自身を含む): 55954080

約数和(自身を除く): 33974694

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 33, 39, 66, 78, 99, 117, 143, 198, 234, 286, 429, 858, 1287, 2574, 8539, 17078, 25617, 51234, 76851, 93929, 111007, 153702, 187858, 222014, 281787, 333021, 563574, 666042, 845361, 999063, 1221077, 1690722, 1998126, 2442154, 3663231, 7326462, 10989693, 21979386]

約数ペア:

[(1, 21979386), (2, 10989693), (3, 7326462), (6, 3663231), (9, 2442154), (11, 1998126), (13, 1690722), (18, 1221077), (22, 999063), (26, 845361), (33, 666042), (39, 563574), (66, 333021), (78, 281787), (99, 222014), (117, 187858), (143, 153702), (198, 111007), (234, 93929), (286, 76851), (429, 51234), (858, 25617), (1287, 17078), (2574, 8539)]