21895678

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1283}}^1$

素因数の和:1368

約数の個数: 32

約数和(自身を含む): 39937536

約数和(自身を除く): 18041858

約数列:

[1, 2, 7, 14, 23, 46, 53, 106, 161, 322, 371, 742, 1219, 1283, 2438, 2566, 8533, 8981, 17066, 17962, 29509, 59018, 67999, 135998, 206563, 413126, 475993, 951986, 1563977, 3127954, 10947839, 21895678]

約数ペア:

[(1, 21895678), (2, 10947839), (7, 3127954), (14, 1563977), (23, 951986), (46, 475993), (53, 413126), (106, 206563), (161, 135998), (322, 67999), (371, 59018), (742, 29509), (1219, 17962), (1283, 17066), (2438, 8981), (2566, 8533)]