178694019

素因数分解:

$3^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{2789}}^1$

素因数の和:2921

約数の個数: 40

約数和(自身を含む): 307882080

約数和(自身を除く): 129188061

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 113, 189, 339, 567, 791, 1017, 2373, 2789, 3051, 7119, 8367, 9153, 19523, 21357, 25101, 58569, 64071, 75303, 175707, 225909, 315157, 527121, 945471, 1581363, 2206099, 2836413, 6618297, 8509239, 19854891, 25527717, 59564673, 178694019]

約数ペア:

[(1, 178694019), (3, 59564673), (7, 25527717), (9, 19854891), (21, 8509239), (27, 6618297), (63, 2836413), (81, 2206099), (113, 1581363), (189, 945471), (339, 527121), (567, 315157), (791, 225909), (1017, 175707), (2373, 75303), (2789, 64071), (3051, 58569), (7119, 25101), (8367, 21357), (9153, 19523)]