21428187

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{22391}}^1$

素因数の和:22434

約数の個数: 16

約数和(自身を含む): 32244480

約数和(自身を除く): 10816293

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 22391, 67173, 246301, 649339, 738903, 1948017, 7142729, 21428187]

約数ペア:

[(1, 21428187), (3, 7142729), (11, 1948017), (29, 738903), (33, 649339), (87, 246301), (319, 67173), (957, 22391)]