21157108

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39769}}^1$

素因数の和:39799

約数の個数: 24

約数和(自身を含む): 44542400

約数和(自身を除く): 23385292

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39769, 79538, 159076, 278383, 556766, 755611, 1113532, 1511222, 3022444, 5289277, 10578554, 21157108]

約数ペア:

[(1, 21157108), (2, 10578554), (4, 5289277), (7, 3022444), (14, 1511222), (19, 1113532), (28, 755611), (38, 556766), (76, 278383), (133, 159076), (266, 79538), (532, 39769)]