21057883

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{16087}}^1$

素因数の和:16122

約数の個数: 16

約数和(自身を含む): 27800064

約数和(自身を除く): 6742181

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 16087, 112609, 176957, 273479, 1238699, 1914353, 3008269, 21057883]

約数ペア:

[(1, 21057883), (7, 3008269), (11, 1914353), (17, 1238699), (77, 273479), (119, 176957), (187, 112609), (1309, 16087)]