21955568

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1523}}^1$

素因数の和:1601

約数の個数: 40

約数和(自身を含む): 45921168

約数和(自身を除く): 23965600

約数列:

[1, 2, 4, 8, 16, 17, 34, 53, 68, 106, 136, 212, 272, 424, 848, 901, 1523, 1802, 3046, 3604, 6092, 7208, 12184, 14416, 24368, 25891, 51782, 80719, 103564, 161438, 207128, 322876, 414256, 645752, 1291504, 1372223, 2744446, 5488892, 10977784, 21955568]

約数ペア:

[(1, 21955568), (2, 10977784), (4, 5488892), (8, 2744446), (16, 1372223), (17, 1291504), (34, 645752), (53, 414256), (68, 322876), (106, 207128), (136, 161438), (212, 103564), (272, 80719), (424, 51782), (848, 25891), (901, 24368), (1523, 14416), (1802, 12184), (3046, 7208), (3604, 6092)]