20951944

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{15497}}^1$

素因数の和:15529

約数の個数: 24

約数和(自身を含む): 42542010

約数和(自身を除く): 21590066

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 15497, 30994, 61988, 123976, 201461, 402922, 805844, 1611688, 2618993, 5237986, 10475972, 20951944]

約数ペア:

[(1, 20951944), (2, 10475972), (4, 5237986), (8, 2618993), (13, 1611688), (26, 805844), (52, 402922), (104, 201461), (169, 123976), (338, 61988), (676, 30994), (1352, 15497)]