20128311

素因数分解:

$3^3\times 7^1\times {\mathrm{281}}^1\times {\mathrm{379}}^1$

素因数の和:676

約数の個数: 32

約数和(自身を含む): 34291200

約数和(自身を除く): 14162889

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 281, 379, 843, 1137, 1967, 2529, 2653, 3411, 5901, 7587, 7959, 10233, 17703, 23877, 53109, 71631, 106499, 319497, 745493, 958491, 2236479, 2875473, 6709437, 20128311]

約数ペア:

[(1, 20128311), (3, 6709437), (7, 2875473), (9, 2236479), (21, 958491), (27, 745493), (63, 319497), (189, 106499), (281, 71631), (379, 53109), (843, 23877), (1137, 17703), (1967, 10233), (2529, 7959), (2653, 7587), (3411, 5901)]