51851421

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{14887}}^1$

素因数の和:14942

約数の個数: 20

約数和(自身を含む): 79263712

約数和(自身を除く): 27412291

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 14887, 44661, 133983, 401949, 640141, 1205847, 1920423, 5761269, 17283807, 51851421]

約数ペア:

[(1, 51851421), (3, 17283807), (9, 5761269), (27, 1920423), (43, 1205847), (81, 640141), (129, 401949), (387, 133983), (1161, 44661), (3483, 14887)]