21711267

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:360

約数の個数: 32

約数和(自身を含む): 33512960

約数和(自身を除く): 11801693

約数列:

[1, 3, 9, 27, 37, 103, 111, 211, 309, 333, 633, 927, 999, 1899, 2781, 3811, 5697, 7807, 11433, 21733, 23421, 34299, 65199, 70263, 102897, 195597, 210789, 586791, 804121, 2412363, 7237089, 21711267]

約数ペア:

[(1, 21711267), (3, 7237089), (9, 2412363), (27, 804121), (37, 586791), (103, 210789), (111, 195597), (211, 102897), (309, 70263), (333, 65199), (633, 34299), (927, 23421), (999, 21733), (1899, 11433), (2781, 7807), (3811, 5697)]