21563548

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4733}}^1$

素因数の和:4821

約数の個数: 24

約数和(自身を含む): 40560912

約数和(自身を除く): 18997364

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 268, 1139, 2278, 4556, 4733, 9466, 18932, 80461, 160922, 317111, 321844, 634222, 1268444, 5390887, 10781774, 21563548]

約数ペア:

[(1, 21563548), (2, 10781774), (4, 5390887), (17, 1268444), (34, 634222), (67, 321844), (68, 317111), (134, 160922), (268, 80461), (1139, 18932), (2278, 9466), (4556, 4733)]