21955184

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{72221}}^1$

素因数の和:72248

約数の個数: 20

約数和(自身を含む): 44777640

約数和(自身を除く): 22822456

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 72221, 144442, 288884, 577768, 1155536, 1372199, 2744398, 5488796, 10977592, 21955184]

約数ペア:

[(1, 21955184), (2, 10977592), (4, 5488796), (8, 2744398), (16, 1372199), (19, 1155536), (38, 577768), (76, 288884), (152, 144442), (304, 72221)]