221618937

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 311296000

約数和(自身を除く): 89677063

約数列:

[1, 3, 37, 79, 111, 127, 199, 237, 381, 597, 2923, 4699, 7363, 8769, 10033, 14097, 15721, 22089, 25273, 30099, 47163, 75819, 371221, 581677, 935101, 1113663, 1745031, 1996567, 2805303, 5989701, 73872979, 221618937]

約数ペア:

[(1, 221618937), (3, 73872979), (37, 5989701), (79, 2805303), (111, 1996567), (127, 1745031), (199, 1113663), (237, 935101), (381, 581677), (597, 371221), (2923, 75819), (4699, 47163), (7363, 30099), (8769, 25273), (10033, 22089), (14097, 15721)]