21181732

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1949}}^1$

素因数の和:1996

約数の個数: 48

約数和(自身を含む): 45864000

約数和(自身を除く): 24682268

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 38, 44, 52, 76, 143, 209, 247, 286, 418, 494, 572, 836, 988, 1949, 2717, 3898, 5434, 7796, 10868, 21439, 25337, 37031, 42878, 50674, 74062, 85756, 101348, 148124, 278707, 407341, 481403, 557414, 814682, 962806, 1114828, 1629364, 1925612, 5295433, 10590866, 21181732]

約数ペア:

[(1, 21181732), (2, 10590866), (4, 5295433), (11, 1925612), (13, 1629364), (19, 1114828), (22, 962806), (26, 814682), (38, 557414), (44, 481403), (52, 407341), (76, 278707), (143, 148124), (209, 101348), (247, 85756), (286, 74062), (418, 50674), (494, 42878), (572, 37031), (836, 25337), (988, 21439), (1949, 10868), (2717, 7796), (3898, 5434)]