21413648

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{9769}}^1$

素因数の和:9914

約数の個数: 20

約数和(自身を含む): 41796060

約数和(自身を除く): 20382412

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 9769, 19538, 39076, 78152, 156304, 1338353, 2676706, 5353412, 10706824, 21413648]

約数ペア:

[(1, 21413648), (2, 10706824), (4, 5353412), (8, 2676706), (16, 1338353), (137, 156304), (274, 78152), (548, 39076), (1096, 19538), (2192, 9769)]