20090917185

素因数分解:

$3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{331}}^1\times {\mathrm{16931}}^1$

素因数の和:17509

約数の個数: 32

約数和(自身を含む): 32379402240

約数和(自身を除く): 12288485055

約数列:

[1, 3, 5, 15, 239, 331, 717, 993, 1195, 1655, 3585, 4965, 16931, 50793, 79109, 84655, 237327, 253965, 395545, 1186635, 4046509, 5604161, 12139527, 16812483, 20232545, 28020805, 60697635, 84062415, 1339394479, 4018183437, 6696972395, 20090917185]

約数ペア:

[(1, 20090917185), (3, 6696972395), (5, 4018183437), (15, 1339394479), (239, 84062415), (331, 60697635), (717, 28020805), (993, 20232545), (1195, 16812483), (1655, 12139527), (3585, 5604161), (4965, 4046509), (16931, 1186635), (50793, 395545), (79109, 253965), (84655, 237327)]