19291797

素因数分解:

$3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{991}}^1$

素因数の和:1110

約数の個数: 32

約数和(自身を含む): 33013760

約数和(自身を除く): 13721963

約数列:

[1, 3, 7, 9, 21, 27, 63, 103, 189, 309, 721, 927, 991, 2163, 2781, 2973, 6489, 6937, 8919, 19467, 20811, 26757, 62433, 102073, 187299, 306219, 714511, 918657, 2143533, 2755971, 6430599, 19291797]

約数ペア:

[(1, 19291797), (3, 6430599), (7, 2755971), (9, 2143533), (21, 918657), (27, 714511), (63, 306219), (103, 187299), (189, 102073), (309, 62433), (721, 26757), (927, 20811), (991, 19467), (2163, 8919), (2781, 6937), (2973, 6489)]