291244317

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{17489}}^1$

素因数の和:17573

約数の個数: 32

約数和(自身を含む): 485802240

約数和(自身を除く): 194557923

約数列:

[1, 3, 7, 13, 21, 39, 61, 91, 183, 273, 427, 793, 1281, 2379, 5551, 16653, 17489, 52467, 122423, 227357, 367269, 682071, 1066829, 1591499, 3200487, 4774497, 7467803, 13868777, 22403409, 41606331, 97081439, 291244317]

約数ペア:

[(1, 291244317), (3, 97081439), (7, 41606331), (13, 22403409), (21, 13868777), (39, 7467803), (61, 4774497), (91, 3200487), (183, 1591499), (273, 1066829), (427, 682071), (793, 367269), (1281, 227357), (2379, 122423), (5551, 52467), (16653, 17489)]