12215217

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 19456000

約数和(自身を除く): 7240783

約数列:

[1, 3, 7, 21, 37, 79, 111, 199, 237, 259, 553, 597, 777, 1393, 1659, 2923, 4179, 7363, 8769, 15721, 20461, 22089, 47163, 51541, 61383, 110047, 154623, 330141, 581677, 1745031, 4071739, 12215217]

約数ペア:

[(1, 12215217), (3, 4071739), (7, 1745031), (21, 581677), (37, 330141), (79, 154623), (111, 110047), (199, 61383), (237, 51541), (259, 47163), (553, 22089), (597, 20461), (777, 15721), (1393, 8769), (1659, 7363), (2923, 4179)]