28294227

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 18880173

約数列:

[1, 3, 9, 13, 29, 31, 39, 87, 93, 117, 261, 269, 279, 377, 403, 807, 899, 1131, 1209, 2421, 2697, 3393, 3497, 3627, 7801, 8091, 8339, 10491, 11687, 23403, 25017, 31473, 35061, 70209, 75051, 101413, 105183, 108407, 241831, 304239, 325221, 725493, 912717, 975663, 2176479, 3143803, 9431409, 28294227]

約数ペア:

[(1, 28294227), (3, 9431409), (9, 3143803), (13, 2176479), (29, 975663), (31, 912717), (39, 725493), (87, 325221), (93, 304239), (117, 241831), (261, 108407), (269, 105183), (279, 101413), (377, 75051), (403, 70209), (807, 35061), (899, 31473), (1131, 25017), (1209, 23403), (2421, 11687), (2697, 10491), (3393, 8339), (3497, 8091), (3627, 7801)]