21806224

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6521}}^1$

素因数の和:6559

約数の個数: 40

約数和(自身を含む): 48523680

約数和(自身を除く): 26717456

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 6521, 13042, 26084, 52168, 71731, 104336, 123899, 143462, 247798, 286924, 495596, 573848, 991192, 1147696, 1362889, 1982384, 2725778, 5451556, 10903112, 21806224]

約数ペア:

[(1, 21806224), (2, 10903112), (4, 5451556), (8, 2725778), (11, 1982384), (16, 1362889), (19, 1147696), (22, 991192), (38, 573848), (44, 495596), (76, 286924), (88, 247798), (152, 143462), (176, 123899), (209, 104336), (304, 71731), (418, 52168), (836, 26084), (1672, 13042), (3344, 6521)]