21640654

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{9601}}^1$

素因数の和:9640

約数の個数: 24

約数和(自身を含む): 39406608

約数和(自身を除く): 17765954

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 1127, 2254, 9601, 19202, 67207, 134414, 220823, 441646, 470449, 940898, 1545761, 3091522, 10820327, 21640654]

約数ペア:

[(1, 21640654), (2, 10820327), (7, 3091522), (14, 1545761), (23, 940898), (46, 470449), (49, 441646), (98, 220823), (161, 134414), (322, 67207), (1127, 19202), (2254, 9601)]