81645123

素因数分解:

$3^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{2791}}^1$

素因数の和:3007

約数の個数: 24

約数和(自身を含む): 127315200

約数和(自身を除く): 45670077

約数列:

[1, 3, 7, 21, 49, 147, 199, 597, 1393, 2791, 4179, 8373, 9751, 19537, 29253, 58611, 136759, 410277, 555409, 1666227, 3887863, 11663589, 27215041, 81645123]

約数ペア:

[(1, 81645123), (3, 27215041), (7, 11663589), (21, 3887863), (49, 1666227), (147, 555409), (199, 410277), (597, 136759), (1393, 58611), (2791, 29253), (4179, 19537), (8373, 9751)]