21010091344

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{119375519}}^1$

素因数の和:119375538

約数の個数: 20

約数和(自身を含む): 44407693440

約数和(自身を除く): 23397602096

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 119375519, 238751038, 477502076, 955004152, 1313130709, 1910008304, 2626261418, 5252522836, 10505045672, 21010091344]

約数ペア:

[(1, 21010091344), (2, 10505045672), (4, 5252522836), (8, 2626261418), (11, 1910008304), (16, 1313130709), (22, 955004152), (44, 477502076), (88, 238751038), (176, 119375519)]