42979221

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{10139}}^1$

素因数の和:10305

約数の個数: 16

約数和(自身を含む): 64084800

約数和(自身を除く): 21105579

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 10139, 30417, 91251, 273753, 1591823, 4775469, 14326407, 42979221]

約数ペア:

[(1, 42979221), (3, 14326407), (9, 4775469), (27, 1591823), (157, 273753), (471, 91251), (1413, 30417), (4239, 10139)]