2819961

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:290

約数の個数: 32

約数和(自身を含む): 4608000

約数和(自身を除く): 1788039

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 171, 207, 239, 437, 513, 621, 717, 1311, 2151, 3933, 4541, 5497, 6453, 11799, 13623, 16491, 40869, 49473, 104443, 122607, 148419, 313329, 939987, 2819961]

約数ペア:

[(1, 2819961), (3, 939987), (9, 313329), (19, 148419), (23, 122607), (27, 104443), (57, 49473), (69, 40869), (171, 16491), (207, 13623), (239, 11799), (437, 6453), (513, 5497), (621, 4541), (717, 3933), (1311, 2151)]