19288881

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 30240000

約数和(自身を除く): 10951119

約数列:

[1, 3, 9, 23, 27, 69, 89, 207, 267, 349, 621, 801, 1047, 2047, 2403, 3141, 6141, 8027, 9423, 18423, 24081, 31061, 55269, 72243, 93183, 216729, 279549, 714403, 838647, 2143209, 6429627, 19288881]

約数ペア:

[(1, 19288881), (3, 6429627), (9, 2143209), (23, 838647), (27, 714403), (69, 279549), (89, 216729), (207, 93183), (267, 72243), (349, 55269), (621, 31061), (801, 24081), (1047, 18423), (2047, 9423), (2403, 8027), (3141, 6141)]