19689968

素因数分解:

$2^4\times {\mathrm{167}}^1\times {\mathrm{7369}}^1$

素因数の和:7544

約数の個数: 20

約数和(自身を含む): 38382960

約数和(自身を除く): 18692992

約数列:

[1, 2, 4, 8, 16, 167, 334, 668, 1336, 2672, 7369, 14738, 29476, 58952, 117904, 1230623, 2461246, 4922492, 9844984, 19689968]

約数ペア:

[(1, 19689968), (2, 9844984), (4, 4922492), (8, 2461246), (16, 1230623), (167, 117904), (334, 58952), (668, 29476), (1336, 14738), (2672, 7369)]