21650188

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{7507}}^1$

素因数の和:7621

約数の個数: 24

約数和(自身を含む): 43726592

約数和(自身を除く): 22076404

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 7507, 15014, 30028, 52549, 105098, 210196, 773221, 1546442, 3092884, 5412547, 10825094, 21650188]

約数ペア:

[(1, 21650188), (2, 10825094), (4, 5412547), (7, 3092884), (14, 1546442), (28, 773221), (103, 210196), (206, 105098), (412, 52549), (721, 30028), (1442, 15014), (2884, 7507)]