40978413

素因数分解:

$3^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1381}}^1$

素因数の和:1554

約数の個数: 32

約数和(自身を含む): 69873920

約数和(自身を除く): 28895507

約数列:

[1, 3, 7, 9, 21, 27, 63, 157, 189, 471, 1099, 1381, 1413, 3297, 4143, 4239, 9667, 9891, 12429, 29001, 29673, 37287, 87003, 216817, 261009, 650451, 1517719, 1951353, 4553157, 5854059, 13659471, 40978413]

約数ペア:

[(1, 40978413), (3, 13659471), (7, 5854059), (9, 4553157), (21, 1951353), (27, 1517719), (63, 650451), (157, 261009), (189, 216817), (471, 87003), (1099, 37287), (1381, 29673), (1413, 29001), (3297, 12429), (4143, 9891), (4239, 9667)]