258889743

素因数分解:

$3^3\times 7^1\times {\mathrm{1369787}}^1$

素因数の和:1369803

約数の個数: 16

約数和(自身を含む): 438332160

約数和(自身を除く): 179442417

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1369787, 4109361, 9588509, 12328083, 28765527, 36984249, 86296581, 258889743]

約数ペア:

[(1, 258889743), (3, 86296581), (7, 36984249), (9, 28765527), (21, 12328083), (27, 9588509), (63, 4109361), (189, 1369787)]