491806917

素因数分解:

$3^3\times 7^1\times {\mathrm{347}}^1\times {\mathrm{7499}}^1$

素因数の和:7862

約数の個数: 32

約数和(自身を含む): 835200000

約数和(自身を除く): 343393083

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 347, 1041, 2429, 3123, 7287, 7499, 9369, 21861, 22497, 52493, 65583, 67491, 157479, 202473, 472437, 1417311, 2602153, 7806459, 18215071, 23419377, 54645213, 70258131, 163935639, 491806917]

約数ペア:

[(1, 491806917), (3, 163935639), (7, 70258131), (9, 54645213), (21, 23419377), (27, 18215071), (63, 7806459), (189, 2602153), (347, 1417311), (1041, 472437), (2429, 202473), (3123, 157479), (7287, 67491), (7499, 65583), (9369, 52493), (21861, 22497)]