21772971

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{761}}^1$

素因数の和:812

約数の個数: 36

約数和(自身を含む): 36493704

約数和(自身を除く): 14720733

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 289, 561, 761, 867, 1683, 2283, 2601, 3179, 6849, 8371, 9537, 12937, 25113, 28611, 38811, 75339, 116433, 142307, 219929, 426921, 659787, 1280763, 1979361, 2419219, 7257657, 21772971]

約数ペア:

[(1, 21772971), (3, 7257657), (9, 2419219), (11, 1979361), (17, 1280763), (33, 659787), (51, 426921), (99, 219929), (153, 142307), (187, 116433), (289, 75339), (561, 38811), (761, 28611), (867, 25113), (1683, 12937), (2283, 9537), (2601, 8371), (3179, 6849)]