21103655841

素因数分解:

$3^4\times {\mathrm{757}}^1\times {\mathrm{344173}}^1$

素因数の和:344942

約数の個数: 20

約数和(自身を含む): 31566950932

約数和(自身を除く): 10463295091

約数列:

[1, 3, 9, 27, 81, 757, 2271, 6813, 20439, 61317, 344173, 1032519, 3097557, 9292671, 27878013, 260538961, 781616883, 2344850649, 7034551947, 21103655841]

約数ペア:

[(1, 21103655841), (3, 7034551947), (9, 2344850649), (27, 781616883), (81, 260538961), (757, 27878013), (2271, 9292671), (6813, 3097557), (20439, 1032519), (61317, 344173)]