19897968

素因数分解:

$2^4\times 3^1\times {\mathrm{257}}^1\times {\mathrm{1613}}^1$

素因数の和:1881

約数の個数: 40

約数和(自身を含む): 51635088

約数和(自身を除く): 31737120

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 257, 514, 771, 1028, 1542, 1613, 2056, 3084, 3226, 4112, 4839, 6168, 6452, 9678, 12336, 12904, 19356, 25808, 38712, 77424, 414541, 829082, 1243623, 1658164, 2487246, 3316328, 4974492, 6632656, 9948984, 19897968]

約数ペア:

[(1, 19897968), (2, 9948984), (3, 6632656), (4, 4974492), (6, 3316328), (8, 2487246), (12, 1658164), (16, 1243623), (24, 829082), (48, 414541), (257, 77424), (514, 38712), (771, 25808), (1028, 19356), (1542, 12904), (1613, 12336), (2056, 9678), (3084, 6452), (3226, 6168), (4112, 4839)]