21322690

素因数分解:

$2^1\times 5^1\times {\mathrm{1373}}^1\times {\mathrm{1553}}^1$

素因数の和:2933

約数の個数: 16

約数和(自身を含む): 38433528

約数和(自身を除く): 17110838

約数列:

[1, 2, 5, 10, 1373, 1553, 2746, 3106, 6865, 7765, 13730, 15530, 2132269, 4264538, 10661345, 21322690]

約数ペア:

[(1, 21322690), (2, 10661345), (5, 4264538), (10, 2132269), (1373, 15530), (1553, 13730), (2746, 7765), (3106, 6865)]