401645439

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{2731}}^1$

素因数の和:3172

約数の個数: 32

約数和(自身を含む): 642566400

約数和(自身を除く): 240920961

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 419, 1257, 2731, 3771, 5447, 8193, 11313, 16341, 24579, 35503, 49023, 73737, 106509, 147069, 319527, 958581, 1144289, 3432867, 10298601, 14875757, 30895803, 44627271, 133881813, 401645439]

約数ペア:

[(1, 401645439), (3, 133881813), (9, 44627271), (13, 30895803), (27, 14875757), (39, 10298601), (117, 3432867), (351, 1144289), (419, 958581), (1257, 319527), (2731, 147069), (3771, 106509), (5447, 73737), (8193, 49023), (11313, 35503), (16341, 24579)]