16628621191

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2411}}^1\times {\mathrm{3989}}^1$

素因数の和:6439

約数の個数: 32

約数和(自身を含む): 21557491200

約数和(自身を除く): 4928870009

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 2411, 3989, 16877, 27923, 31343, 45809, 51857, 75791, 219401, 320663, 362999, 530537, 595517, 985283, 4168619, 6896981, 9617479, 67322353, 125027227, 182732101, 875190589, 1279124707, 2375517313, 16628621191]

約数ペア:

[(1, 16628621191), (7, 2375517313), (13, 1279124707), (19, 875190589), (91, 182732101), (133, 125027227), (247, 67322353), (1729, 9617479), (2411, 6896981), (3989, 4168619), (16877, 985283), (27923, 595517), (31343, 530537), (45809, 362999), (51857, 320663), (75791, 219401)]