20747433

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{2663}}^1$

素因数の和:2733

約数の個数: 24

約数和(自身を含む): 32799168

約数和(自身を除く): 12051735

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 371, 1113, 2597, 2663, 7791, 7989, 18641, 55923, 130487, 141139, 391461, 423417, 987973, 2963919, 6915811, 20747433]

約数ペア:

[(1, 20747433), (3, 6915811), (7, 2963919), (21, 987973), (49, 423417), (53, 391461), (147, 141139), (159, 130487), (371, 55923), (1113, 18641), (2597, 7989), (2663, 7791)]