21938279

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:215

約数の個数: 24

約数和(自身を含む): 26053248

約数和(自身を除く): 4114969

約数列:

[1, 11, 17, 67, 103, 187, 289, 737, 1133, 1139, 1751, 3179, 6901, 12529, 19261, 19363, 29767, 75911, 117317, 212993, 327437, 1290487, 1994389, 21938279]

約数ペア:

[(1, 21938279), (11, 1994389), (17, 1290487), (67, 327437), (103, 212993), (187, 117317), (289, 75911), (737, 29767), (1133, 19363), (1139, 19261), (1751, 12529), (3179, 6901)]