21562772

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{70009}}^1$

素因数の和:70031

約数の個数: 24

約数和(自身を含む): 47046720

約数和(自身を除く): 25483948

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 70009, 140018, 280036, 490063, 770099, 980126, 1540198, 1960252, 3080396, 5390693, 10781386, 21562772]

約数ペア:

[(1, 21562772), (2, 10781386), (4, 5390693), (7, 3080396), (11, 1960252), (14, 1540198), (22, 980126), (28, 770099), (44, 490063), (77, 280036), (154, 140018), (308, 70009)]